The interest obtained after 4 years from a loan of $7500 is = $750
Calculation of generated interestThe principal amount of the loan = $7500
The rate at which the interest is paid is = 2.5%
The time that it will take to pay the interest = 4 years
Using the formula for Simple interest;
SI= P×T×R/100
SI = 7500×4 × 2.5/100
SI= 75000/100
SI=$750
Therefore, the interest accrued on a $7500 loan with a 2.5% interest rate over 4 years is = $750
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find the percent of this number: 32% of 25 pages
Answer:
8 pages is 32% of 25
Step-by-step explanation:
Change 32% to a decimal.
32% = .32
Multiply by 25
.32 * 25
8
8 pages is 32% of 25
Answer:
8 pages
Step-by-step explanation:
Now we have to,
→ find the 32% of 25 pages.
Let's solve the problem,
→ 32% of 25
→ (32/100) × 25
→ 0.32 × 25
→ 8 pages
Hence, answer is 8 pages.
Evaluate the function when x=1 and 5
g(x)=5-7x step by step
Answer: (1,-2) , (5,-35)
Step-by-step explanation:
x = 1
1. g(x) = 5 - 7x
This can also be written as g(1) = 5 - 7x
This means that we plug in 1 for all the "x"s. So we get:
g(1) = 5 - 7(1)
7(1) = 7
5 - 7 = -2
x = 1 is true and that means y = -2 (because g(x) also means y
x = 5
1. g(x) = 5 - 7x
This can also be written as g(5) = 5 - 7x
This means that we plug in 5 for all the "x"s. So we get:
g(5) = 5 - 7(5)
7(5) = 35
5 - 35 = -30
x = 5 is true and that means y = -35
I think this is what the question meant, hope this helps!
Evelyn bought some belts online for $70. She used a coupon code to get a 10% discount. The website also applied a 5% processing fee to the price after the discount. How much did Evelyn pay, in the end? Round to the nearest cent.
Answer:
66.15
Step-by-step explanation:
70 dollars - discount + fee
discount = 10% of total = 10% of 70 = 0.1 * 70 = 7
fee = 5% of discounted price
discounted price = original - discount = 70 -7 = 63
fee = 5% of 65 = 0.05 * 65 = 3.15
70 - 7 + 3.25 = 66.15
write two numbers that multiply to the value on top and add to the value
-30
+
+4
7
The numbers that result in the top and bottom numbers are: -3.83 and 7.83
What is System of Linear Equations?System of linear equations is the given term math for two or more equations with the same variables. The solution of these equations represents the point at which the lines intersect.
x y= -30............ (1)
and, x + y= 4 ...................(2)
So, x + (-30/x)= 4
x² - 30 = 4x
x² -4x -30 = 0
Solving the Quadratic Equation
x= (4 ±√4² - 4(1)(-30) / 2)
x= (4 ± √136)/ 2
x= (4 ± 11.66)/2
x= (4+ 11.66)/2 or x= (4- 11.66)/2
x= 15.66/2 or x= -7.66/2
x = 7. 83 or x= -3.83
So, For y=7.83
x+ y = 4
x= -3.83
For y=-3.83
x+y=-4
x+(-3.83)= 4
x= 7.83
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Which word best completes the blank. 4x + 4 = 4x + h This equation will have __________many solutions when h = 4 because you get _______ solutions when you have the same number of x's on each side and the same constant Question 2 options: a) none b) zero c) one d) infinite
The complete statement is -
This equation will have infinitely many solutions when h = 4 because you get infinite solutions when you have the same number of x's on each side and the same constant.
What is expression?In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.
Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.
Given is the equation as -
4x + 4 = 4x + h
Now, for h = 4, the equation will become -
4x + 4 = 4x + 4
4x = 4x
x = x
x - x = 0
0 = 0
We can fill in the blank as -
This equation will have infinitely many solutions when h = 4 because you get infinite solutions when you have the same number of x's on each side and the same constant.
Therefore, the complete statement is -
This equation will have infinitely many solutions when h = 4 because you get infinite solutions when you have the same number of x's on each side and the same constant.
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Find the slope from the table
X
2
4
6
8
y
-8
-4
0
4
The slope of the table is 2.
What is slope?
An indication of how steep a line is is its slope. When calculating slope mathematically, "rise over run" is used (change in y divided by change in x). The ratio of how much y grows as x grows by a certain amount is known as the slope of a line. A line's slope, or the amount by which y rises as x rises, indicates how steep a line is. The slope is constant (the same) along the line.
Here using given table we can find slope by taking any two points then,
[tex](x_1,y_1)=(6,0) and (x_2,y_2)=(4,-4)[/tex]
Now using slope formula m = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]
=> m = [tex]\frac{-4-0}{4-6}[/tex]
=> m = [tex]\frac{-4}{-2}[/tex]
=> m = 2
Hence the slope of the given table is 2.
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The slope of points that are given on the table is 2.
What is the slope?The slope of a line indicates how steep it is. "rise over run" is used to calculate slope mathematically (change in y divided by change in x). The slope of a line is the ratio of how much y grows as x grows by a certain amount. The slope of a line, or the amount by which y rises as x rises, indicates the steepness of the line. Along the line, the slope is constant (the same).
Using the given table, we can find the slope by taking any two points and then,
(x1,y1) = (6,0) and (x2,y2) = (4,-4)
Using the slope formula m = y2-y1/x2-x1,
Then,
m = -4-0/4-6
m = -4 /-2
=> m = 2
As a result, the slope of the given table is 2.
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Match the special segment in triangles
The required special segment in triangles that are matched in the triangles is given as perpendicular bisector, altitude, median, and midsegments.
What is the triangle?The triangle is a geometric shape that includes 3 sides and the sum of the interior angle should not be greater than 180°
The question seems to be incomplete, so we assume that there are two congruent triangles.
For the congruent triangles, special segments in triangles are congruent to each other.
Thus, the required special segments in triangles that are matched in the triangles is given as perpendicular bisector, altitude, median, and midsegments.
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The city is building a rectangular parking lot. The city wants the width of the parking lot to be 5 yards the area of the parking lot to be more than 30 square yards all the city employees must park there write an inequality that describes a possible lengths in yards of the parking lot
An inequality that describes a possible length in yards of the rectangular parking lot is L < 6.
How to calculate the area of a rectangle?Mathematically, the area of a rectangle can be calculated by using this formula:
A = LW
Where:
A represents the area of a rectangle.W represents the width of a rectangle.L represents the length of a rectangle.Since the city wants the width of the parking lot to be 5 yards and the area of the rectangular parking lot to be more than 30 square yards, an inequality that models a possible lengths of the rectangular parking is giving by;
A > LW
30 > 5L
Dividing both sides of the inequality by 5, we have:
6 > L
L < 6
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Match the numbers on the left with all appropriate number sets on the right. A number on the left may match with more than one number set on the right
Each of the numbers on the left should be matched with all appropriate number sets on the right as follows:
√5 ⇒ Irrational.6 ⇒ Natural, Whole, Integer, Rational.1/2 ⇒ Rational.-2 ⇒ Integers, Rational.What are the types of numbers?In Mathematics, there are six (6) common types of numbers and these include the following:
Irrational numbers.IntegersNatural (counting) numbers.Real numbersRational numbers.Whole numbers.What is a rational number?In Mathematics, a rational number can be defined a type of number which comprises fractions, integers, terminating or repeating decimals such as the 6, 12, 1/2, 0.5, √16, -2, etc.
Additionally, -2 can be classified as both a rational number and an integer.
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confused as heck answer?
Answer: C
Step-by-step explanation:
It's actually quite easy.
The problem says that the value of b is 0.5 and the value of c is 0.75
Substitute these values for both variables, and you see that
5b+c = 0.5*5+0.75 = 2.5+0.75 = 3.25
Final Answer = C
I. need help please…
In ACDE, m/C = 67° and m/D = 52°. Which statement about the sides of ACDE
must be true?
If one angle is 67° and the other is 52°, the other two angles are equal and the angle has a value of 120°.
what is angle ?A place where two lines converge creates an angle. They are quantified in degrees and are denoted by the symbol °. Four essential types are reflex, acute, right, and obtuse angles. A circle has 360 degrees. One terminal exists when two rays (half-lines) are merged form an angle. The rays are referred to as the angle's sides, occasionally as its legs, and occasionally as its arms, while the latter is referred to as the angle's vertex. The place where all points of an angle converge is known as the vertex.
given
total interior angles = 360°
m/C = 67° , m/D = 52°
67° + 52° + 2x = 360 °
119 + 2x = 360 °
2x = 360 ° - 119°
x = 120°
if one angle is 67° and the other is 52°, the other two angles are equal and the angle has a value of 120°.
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The complete question is :-In ACDE, mzC = 67° and mzD = 52°. Which statement about the sides of ACDE must be true?
DE > CD > EC
DE > EC > CD
EC > CD > DE
EC > DE > CD
CD > DE > EC
CD > EC > DE
find the gradient vector field of f. f(x, y) = tan(3x − 4y)
The gradient vector field of f(x, y) = tan(3x − 4y) is ∇f = (3 [tex]sec^2[/tex](3x − 4y) , −4 [tex]sec^2[/tex](3x − 4y)).
The gradient vector field of f(x, y) = tan(3x − 4y) is given by ∇f = (3 [tex]sec^2[/tex](3x − 4y) , −4 [tex]sec^2[/tex](3x − 4y))
The gradient vector field, also known as the gradient of a scalar function, is a vector-valued function that describes the direction of the steepest increase of a scalar function at a given point. It is represented by the symbol ∇ and is defined as the vector of partial derivatives of the function with respect to each variable.
To find the gradient vector field of f(x, y) = tan(3x − 4y), we take the partial derivatives with respect to x and y:
∂f/∂x = 3 [tex]sec^2[/tex](3x − 4y)
∂f/∂y = −4 [tex]sec^2[/tex](3x − 4y)
The gradient vector field is a useful tool in vector calculus and can be used to find the direction of the maximum increase of a scalar function, the direction of a vector field, the direction of a level curve, the equation of a tangent plane, and many other applications.
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Lorraine prepared a 4.5-gallon pot filled with tomatoes to be canned in jars. Each jar will hold 1.5 quarts of tomatoes. If 1 gallon equals 4 quarts, how many jars can Lorraine fill?
3 jars
9 jars
10 jars
12 jars
12
Step-by-step explanation:
bc i did the math
Answer: The answer is 12.
Step-by-step explanation:
The answer is twelve because if you divide 1.5 by 4, it equals 0.375, and then you divide 4.5 by 0.375, you get 12! hope this helps!
Which other expression has the same value as(-14)-8 ? Explain your
reasoning.
a. (-14)+8
b. (-14)- (-8)
c. (-14)+(-8)
d. (-14)+ (-8)
(-14)+(-8) is expression has the same value as(-14)-8 as positive and negative signs cancel each other and becomes negative.
What is positive and negative sign?To determine whether a number is positive or negative, always pay attention to the sign before it. There is no positive or negative in zero. A positive number is equal to an addition of a negative number when it is subtracted from a negative number. In other words, it intensifies the negative value.
Negative numbers cancel out their negative signs when subtracted from positive numbers, making addition simple. It increases the positive number's positivity.
A plus sign is created when you subtract one negative number from another negative number because the negative signs once again cancel each other out. The response bears the larger number's sign.
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A pack of paper costs $3.75, including tax. Mr. Cooper wants to purchase packs of
paper for his class and has a $20 budget. Write an inequality to solve for the number
of packs of paper Mr.
Cooper can purchase.
$3.75x ≥ $20
$3.75x ≤ $20
$20x s $3.75
$20x ≥ $3.75
B, $3.75 is less than or equal to $20
$3.75 is the price per pack
if he has a budget of $20, then the sum of $3.75x cannot be above it.
$3.75x <(or equal to) $20
AKA, B.
Answer:
Step-by-step explanation:
Total budget = $ 20
Cost 1 pack of paper = $3.75
Let the number of pack of papers Mr. Cooper can buy = x
Total cost of buying x packs of paper = $ 3.75x
The total cost of paper pack cannot exceed the total budget.
$3.75x <= $ 20
(Please help)
Suppose you turn a pump on and let it run to empty the water out of a pool. The amount of water in the pool (W, measured in gallons) at any time (T, measured in hours) is given by the following equation: W = -350 (T – 4).
1. How many gallons of water are being pumped out each hour?
2. Explain how you found the answer to number 2.
3. When the pump is placed in the pool, how much time has passed? (hint: you just started)
4. How much water was in the pool when the pumping started? (hint: at the beginning)
5. How long will it take for the pump to empty the pool? (hint: When the pool is empty which value should be zero?)
6. Write an equation that is equivalent to W = -350(T – 4). (hint: distribute and solve for T)
7. What does your new equation tell you about the situation?
Answer:
The gallons of water being pumped out each hour is -350 gallons/hour.
To find the gallons of water being pumped out each hour, we need to look at the coefficient of T in the equation W = -350 (T – 4). This coefficient is -350, which represents the rate of change of water in the pool with respect to time, and thus the gallons of water being pumped out each hour.
When the pump is placed in the pool, the time that has passed is 4 hours.
The pool contained 1400 gallons of water when the pumping started.
The pump will take 4 hours to empty the pool.
You can distribute the -350, the new equation will be W = -350T + 1400
The equation W = -350T + 1400 represents the amount of water in the pool (W) at any time (T), where the amount of water in the pool decreases linearly with time with a rate of -350 gallons/hour and the initial water in the pool is 1400 gallons.
Step-by-step explanation:
1. 350 gallons of water are being pumped out each hour.
2. Answer 1 can be found with the slope.
3. When, the pump is placed in the pool, Time passed = zero.
4. Water in the pool when the pumping started = 1400 gallons
5. Time for the pump to empty the pool = 4 hours
6. Equation that is equivalent to W = -350(T – 4) is T = -W/350 + 4
7. New equation represents A line with slope = -1/350 that is time per gallon and intercept equal to 4 that is total time.
What is slope intercept form of line?The slope-intercept form of a straight line is used to find the equation of a line. For the slope-intercept formula, we have to know the slope of the line and the intercept cut by the line with the y-axis. Let us consider a straight line of slope 'm' and y-intercept 'b'. The slope intercept form equation for a straight line with a slope, 'm', and 'b' as the y-intercept can be given as:
y = mx + b.
Given,
The amount of water in the pool(W, measured in gallons) at any time (T, measured in hours) is
W=-350(T-4).
1. How many gallons of water are being pumped out each hour?
Ans: That would be the slope: 350 gallons per hour
2. Explain how you found the answer.
Ans: Comparing the given equation to equation y = mx + b.
3. When the pump is placed in the pool, how much time has passed?
Ans: Since pump is just started time T = 0
4. How much water was in the pool when the pumping started?
Ans: that would be W(0) = -350(0-4) = 1400 gallons
5. How long will it take for the pump to empty the pool completely?
Ans: Let W(T) = 0 and solve for T:
T = 4
6. Write an equation that is equivalent to W=-350(T-4). What does this second equation tell you about the situation?
T = -W/350 + 4
Time per gallon = -1/350 and intercept = 4, that is total time in hours.
7. What does your new equation tell you about the situation?
Ans: Time per gallon = -1/350 and intercept = 4, that is total time in hours.
Hence,
1. Amount of water pumped out each hour = 350 gallons
2. The slope represents amount of water pumped out each hour.
3. Zero time was passed when the pump is placed in the pool.
4. 1400 gallons of water was in the pool when the pumping started.
5. It will take 4 hours for the pump to empty the pool.
6. T = -W/350 + 4 is equivalent to W = -350(T – 4).
7. Slope = -1/350 represents the time per gallon, 4 is total time in hours that is y - intercept.
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Find the average rate of change of g(x)=3x^2-5x from x=4 to x=8 simplify your answer as much as possible
The average rate of change of g(x)=3x^2-5x from x=4 to x=8 is 90
How to determine the average rate of changeFrom the information given, we have that;
g(x) = 3x² - 5x
To determine the rate from x = 4 to x = 8
First, substitute the value of x as 4, we get;
g(4) = 3(4)² - 5(4)
expand the bracket, we get;
g(4) = 48 - 20
Subtract the values
g(4) = 28
For g(8), we get;
g(8) = 3(8)² - 5(8)
expand the bracket
g(8) = 192 -- 40
subtract the values
g(8) = 152
The average rate is;
= 152 + 28/2
= 90
Hence, the value is 90
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Which linear system could the graph represent?
Responses
A 4x + 4y = 4
x + y = 14x + 4y = 4 x + y = 1
B 2x − y = 4
x + 2y = −32x − y = 4 x + 2y = −3
C −x + y = 2
x + 2y = 2−x + y = 2 x + 2y = 2
D x + y = 2
2x + 2y = 8x + y = 2 2x + 2y = 8
Question 2
The system represented by the graph has how many solutions?
Responses
A 1
B 2
C 0
D infinitely many
How do you write an exponential growth equation to model a situation?
Answer:
i will take risk and do it an any situation to growth equation
I really need help on this because I don't understand how to calculate this. (I need this answered now please!!)
Julia spins 2 spinners. One of the spinners is labeled 1, 2 and 3, and the other is labeled A, B and C. What is the probability that Julia will land on a 1 and an A?
A) 1/6
B)1/3
C)1/2
D)1/9
Based on the information provided, the probability that Julia will land on a 1 and an A is 1/6 or 0.166.
What is probability?The probability can be described as the likelihood of an event happening. In most cases, the probability depends on the ratio of the desired event and all possible outcomes. For example in a bag with a total of 6 red balls and 4 black balls the probability of getting a red ball is 6/10.
What is the probability in this case?To find out the total probability, we need to calculate the two probabilities involved and mutiply them.
Probability spinner 1 lands = 1/3 as there are three spinners
Probability A lands = 1/4 as there are 4 possible outcomes A, B, C, D
1/3 x 1/4 = 1/6This means the probability of this event happening is 1/6, which can be simplified as 0.166 or 16%.
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A boat is heading towards a lighthouse, whose beacon-light is 126 feet above the water. The boat’s crew measures the angle of elevation to the beacon, 13∘. What is the ship’s horizontal distance from the lighthouse (and the shore)? Round your answer to the nearest tenth of a foot if necessary.
Answer: The distance of the ship from the lighthouse is 546.4 feet.
Step-by-step explanation:
What is the angle of elevation?
The angle of elevation is an angle that is formed between the horizontal line and the line of sight. If the line of sight is upward from the horizontal line, then the angle formed is an angle of elevation.
The beacon light is 126 feet high, the angle of elevation to the beacon is 13° and the distance from the lighthouse to the ship = x
These from a right-angled triangle,
from trigonometry
tan 13 = 126/x
making x the subject of the equation we have
x tan 13 = 126
x = 126/tan 13
but tan 13 = 0.2308
x = 126/0.2308
x = 546.4 feet
In conclusion, the ship's distance from the lighthouse is 546.4 feet.
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Henry rolls 2 number cubes numbered 1 through 6 while playing his favorite board game. He will get a second turn if he rolls a sum that is an even number less than 10. What are Henry's chances of getting a second turn when he rolls the number cubes? (2 points) 7 over 18 11 over 18 5 over 36 17 over 36
Henry's chances of getting a second turn when he rolls the number cubes are 1/9 or approximately 11/18.
To find Henry's chances of getting a second turn when he rolls the number cubes, we need to find the probability of rolling an even number less than 10.
First, let's find the total number of possible outcomes when rolling two number cubes. Each cube has 6 possible outcomes (1, 2, 3, 4, 5, or 6), so the total number of possible outcomes is 6 x 6 = 36.
Next, let's find the number of outcomes that meet the criteria for a second turn (even number less than 10). We can list out all the possible outcomes that meet these criteria:
2 (1+1)
4 (1+3 or 2+2)
6 (1+5 or 2+4 or 3+3)
8 (2+6 or 3+5 or 4+4)
So, there are 4 outcomes that meet the criteria for a second turn.
To find the probability, we divide the number of favourable outcomes (4) by the total number of possible outcomes (36).
4/36 = 1/9
So Henry's chances of getting a second turn when he rolls the number of cubes are 1/9 or approximately 11/18.
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A sphere has a volume of 400cm3 find the volume of sphere N whose radius is half radius of m
Answer:
The volume of sphere N is 400cm3/8 = 50cm3
Step-by-step explanation:
The volume of a sphere is given by the formula: V = 4/3 * π * r^3
where V is the volume, π is pi (approximately 3.14), and r is the radius of the sphere.
Given that the volume of sphere M is 400cm3 and the radius of sphere N is half the radius of sphere M, we can write an equation to find the volume of sphere N:
Vm = 4/3 * π * rm^3 = 400cm3
We know that radius of sphere N is half of sphere M so
rn = rm/2
So the volume of sphere N can be found by substituting the value of radius of sphere N in the sphere volume formula:
Vn = 4/3 * π * (rm/2)^3
Vn = 4/3 * π * (rm^3)/8
Vn = (Vm)/8
So, the volume of sphere N is 1/8th of the volume of sphere M, which is 400cm3.
The volume of sphere N is 400cm3/8 = 50cm3
What are the domain and range of the function f(x) =-x+3-2
Therefore , the solution of the given problem of domain comes out to be
Domain =[-∞,∞) and Range: (-∞,∞].
What is a domain?A function's domain is the range of possible arguments that it may accept. These integers indicate the cin of a polynomial like f. (x). The range of potential values that can be used with a function is known as its domain. The number that the method returns after inserting the x value belongs to this set. The formula for a function with y as the predictor variables and x as the regression coefficient is y = f. (x). When a single value of y can be successfully produced from a value of x, that x values is said to fall within the domain of the function.
Given : f(x) = -x+3-2
after being streamlined, y = -x + 1
To Locate: What are the function's domain and range?
Solution:
In relation to the Domain:
=> -x + 1 < 0
=> -x < -1
Domain =[-∞,∞) thus.
for the range
=> -x + 1 < 0
=> -x < -1
=>f(x)= -x -1 Consequently, Range: (-∞,∞]
Therefore , the solution of the given problem of domain comes out to be
Domain =[-∞,∞) and Range: (-∞,∞].
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Answers for 5,6,7 please I need help
Description Interval notation Set builder notation
5. (-∞, -4] {x | x ≤ -4 |
6. (-∞, ∞) { x | x all real numbers }
7. (-11/3, 17/3] { x | x -11/3 < x ≤ 17/3 }
What is interval notation?Continuous sets of real numbers can be represented using interval notation by the numbers that bound them. When written, intervals resemble ordered pairs in several ways.
In interval notation ( ) means open interval, [ ] represents closed interval
Numbers on the square brackets are included in the notation while numbers of the braces (open interval) are not included
Set builder notation is a type of mathematical notation used to describe sets by naming its components or highlighting the requirements that each member of the set must meet.
Set builder notation used curtly brackets to carry out the information.
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Understand Systems of Linear Equations - Ouiz - Level H
y=-2x+4
y = 2x
* How many solutions does the system of equations have?
* One solution
What is the solution to the system of equations?
(2, 2)
(1, 1)
(1, 2)
(2,1)
Answer:
There is only one solution and the solution is (0,4).
Step-by-step explanation:
The given system has equations;
and
We equate the two equations to determine their point of intersection;
We put x=0 into the first equation to get;
There is only one solution and the solution is (0,4).
Select the correct answer. What is the general form of the equation of a circle with its center at (-2, 1) and passing through (-4, 1)? A. x2 + y2 − 4x + 2y + 1 = 0 B. x2 + y2 + 4x − 2y + 1 = 0 C. x2 + y2 + 4x − 2y + 9 = 0 D. x2 − y2 + 2x + y + 1 = 0 Reset Next
Answer B)
Step-by-step explanation:
( x + 2 )² + ( y - 1 )² = r²
( - 4 + 2 )² + ( 1 - 1 )² = r²
4 = r², than we will plug in to a formula:
( x + 2 )² + ( y - 1 )² = 4
x² + 4 x + 4 + y² - 2 y +1 = 4
x² + y² + 4 x - 2 y + 1 = 0
During his basketball career, Karl Malone took 22,975 free
throws. He made 42.6% of his free throws. Determine the
number of free throws Karl Malone made during his career.
A. 9,787
B. 13, 187
C. 32, 762
D. 978, 735
Answer:
A
Step-by-step explanation:
Suppose that 60 percent of 1,000 randomly selected U.S. adults say that they take part in some form of daily activity to keep physically fit. Based on this finding, find a 95 percent confidence interval for the proportion of all U.S. adults who would say they take part in some form of daily activity to keep physically fit. Based on this interval, is it reasonable to conclude that more than 50 percent of all U.S. adults would say they take part in some form of daily activity to keep physically fit?
Yes, based on the interval (0.59, 0.606), it reasonable to conclude that more than 50 percent of all U.S. adults would say they take part in some form of daily activity to keep physically fit.
What is a confidence interval?The confidence interval is the range of values that you expect your estimate to fall between a certain percentage of the time if you run your experiment again or re-sample the population in the same way.
Given that, 60 percent of 1,000 randomly selected U.S. adults say that they take part in some form of daily activity to keep physically fit.
The 95% confidence interval for the Population proportion is given as:
(p-z×√(p×(1-p)/n), (p-z×√(p×(1-p)/n)
Here, p=0.60
n = 1000
Now, 0.60-z×√0.60(1-0.60)/1000), 0.60+z×√0.60(1-0.60)/1000)
z is the upper 0.025 point of a standard normal distribution which is 1.96
(0.60-1.96×√0.60(1-0.60)/1000, 0.60+1.96×√0.60(1-0.60)/1000)
(0.59, 0.606)
Yes, based on the interval (0.59, 0.606), it reasonable to conclude that more than 50 percent of all U.S. adults would say they take part in some form of daily activity to keep physically fit.
Learn more about the confidence interval visit:
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