Heights of American adult women are normally distributed with mean 63.6 inches and standard deviation 2.5 inches. Find the height of an adult woman that corresponds to the 80th percentile.

Answers

Answer 1

Answer:

65.7

Step-by-step explanation:

Given ;

Mean, m = 63.6

Standard deviation, s = 2.5

80th percentile = 80 / 100 = 0.8

The Zscore corresponding to the 80th percentile ; Z < P = 0.842 (Z probability calculator)

Zscore = (x - m) / s

0.842 = (x - 63.6) / 2.5

0.842 * 2.5 = x - 63.6

2.105 = x - 63.6

x = 63.6 + 2.105

x = 65.705


Related Questions

ABCD is a rhombus. If angle A is 129 degrees and the perimeter of ABCD is 60, then find the length of each diagonal.

Answers

Answer:

I just took this I'm bouts to go on break.... will have the answer

f(x)=-4x - 10 find x when f(x)=10

Answers

Answer:

-40

Step-by-step explanation:

f(10)=-4(10)

f(10)=-40

Add the equations. What value belongs in the green box? 3x + 2y = 9 -x - 2y = 4 [?] + [?] = [?] A. 4x B. 2x C. -3x D. -2x​

Answers

Consider the first blank is the green box.

Given:

The equations are

[tex]3x+2y=9[/tex]

[tex]-x-2y=4[/tex]

To find:

The value belongs in the green box

Solution:

We have,

[tex]3x+2y=9[/tex]        ...(i)

[tex]-x-2y=4[/tex]        ...(ii)

Adding (i) and (ii), we get

[tex]3x+2y-x-2y=9+4[/tex]

[tex](3x-x)+(2y-2y)=13[/tex]

[tex]2x+0=13[/tex]

So, the value for the first black is 2x. It means the value belongs in the green box is 2x.

The values of three blanks are 2x, 0 and 13 respectively.

Therefore, the correct option is B.

Answer:

2x + 0 = 13

Step-by-step explanation:

To add the equations, we add the corresponding terms on both sides of the equal sign.

The given equations:

3x + 2y = 9

-x - 2y = 4

Adding the equations term by term:

(3x + (-x)) + (2y + (-2y)) = 9 + 4

Simplifying the equation:

2x + 0 = 13

The term "0" in the equation indicates that the terms (2y and -2y) cancel each other out when added.

PLEASE HELP ME ASAP!! MY CLASS IN 6 MINUTES!
At a gathering of 12 people, there are 5 people who all know each other and 7 people who know no one. People who do not know each other shake hands. How many handshakes occur?

Answers

Answer: someone told me its 35 so...

Step-by-step explanation:

Answer:

Step-by-step explanation: Since there are 7 people who shake hands with everybody including the people who know each other, we can add 11+10+9+8+7+6+5, because each handshake counts once, but the other five can't be counted because they are the people who already know each other and if you add 11+10+9+8+7+6+5, you will also get 16*3 +8 which equals to 56.

I need help with this​

Answers

it is option 3 trust

Forest needs to repaint the right side of his house because sunlight and rain have caused the paint to peel. Each can of paint states that it will cover 150 square feet. Help forest decide how many cans of paint he should buy?

Answers

Answer:

Step-by-step explanation:

In order for Forest to decide how many cans of paint to buy he first needs to know how many square feet make up the wall that he wants to paint. He can calculate this by multiplying the length of the wall by the height of the wall. That will give him the square footage of the wall which can be represented as x in the following formula. Now that he has that, he needs to divide this value by 150 which is what each can of paint covers. The answer will be the number of cans that Forest should buy.

x / 150 = number of cans

The numbers of cans of paint he should buy can be calculated as follows :

x / 150.

where

x = Area of the wall needed to be painted in square feet.

Forest needs to paint the right side of his house because of sunlight and

rain.

According to his analysis each can of paint will cover an area of 150 ft².

This simply means for every 150 square feet of his wall, he will require 1

can of paint.

The number of paint he should buy can be determined as follows:

let

x = area of the right side of his wall needed to be painted

The number of can required = x / 150

learn more; https://brainly.com/question/11560953?referrer=searchResults

What is the volume of this triangular pyramid?

Answers

The volume is 24 cubic meters :)

There is a bag with 50 popsicles inside. 5 are red, 15 are orange, 12 are blue, 8 are yellow and 10 are purple. If you were to grab one popsicle from the bag, what is the probability that it is purple or yellow? Enter your answer in simplest form. P(purple or yellow)​

Answers

Answer:

yellow is 16% and purple is 20%

Step-by-step explanation:

It’s really hard...pls help

Answers

Answer:

80

Step-by-step explanation:

360 - (110+80+90) = 80

Answer:

80°

Step-by-step explanation:

360-110-90-80

Angles outside a circle add up to 360°

what is x? .........................

Answers

Answer:

The value of x is 7 cm.

Step-by-step explanation:

we can see that there are two triangles. smaller triangle and larger triangle.

Cual es mayor? >, <, o =
-8 o 8 ?
1,3 o -1,2?
-5 o 0?
0 o 4?
0 o -0,1
3 o 5
3,2 o 3,12

Answers

Answer:

-8<8

1,3>-1,2

-5<0

0<4

0>-0,1

3<5

3,2>3,12

zero es mas grande que los numeros negativos

Fill in the missing term on each line. Simplify any fractions.
مام
+ 4 = 6
b
=
Subtract 4 from both sides
b =
Multiply both sides by 3

Answers

2+4=6
-4. -4
2=2
Divide by 2
1

Is this correct?? If not please correct me if you can. I highlighted my answers and added arrows to show my answers.

Answers

Answer:

yes it is right but you might want to make it neater

Step-by-step explanation:

:)

Work out the value of 4^5

Answers

4^5 = 1024

Work : 4 * 4 * 4 * 4 * 4 = 1024

Answer: 2/15

Step-by-step explanation:

firstly divide lcm by denominator 1 = 15/5 = 3

then multiply by 3 nominator = 4*3 = 12

then divide lcm by denominator 2 = 15/3= 5

Multiply by 5 nominator = 5*2 = 10

lastly 12-10/15 ( both answer upon lcm)

2/15

Please help!!!

There are 5,000 books in the town's library. Of these, 4,900 are fiction. To
find the percent of the books that are fiction, first set up the percent equation. Then find the percent.
Setup the percent equation. Choose the correct answer below.
A. 5,000 = m times 4,900
B. 5,000 = m divided by 4,900
C. 4,900 = m times5,000
D. 4,900 = m divided by5,000
(type whole number)

thank u so much!!

i will give brainliest to the correct answer!!

Answers

Answer:

C. 4,900 = m times 5,000

Step-by-step explanation:

Total books = 5,000

Fiction = 4,900

Calculations:

[tex]5,000. \frac{x}{100} =4,900[/tex]

[tex]\frac{x}{100} = \frac{4,900}{5,000}[/tex]

[tex]\frac{x}{100} =0.98[/tex]

[tex]x=98[/tex]

Now that we know x we can come up with the equation and can determine which one is correct. x = m = 98%

Therefore, 4,900 is 98% of 5,000.

So 5,000 x 98% = 4,900

And the equation that matches that is C.

HELP OMG PLEASE ITS EASY IM JUST LAZY TO USE MY BIG BRAIN TY <3

Answers

Answer:

3. <0, <BOA, <ABO

45

4. <E, <NED,<DEN

80

here you guess and judge by your basic knowledge of angles and guess the angle measurement. and as far as the angle names with three points there should be three names and so the angle you are measuring must always be in the middle and ya :))

So I need 20 words but I don’t get why so here’s this useless sentence

Answers

Answer:

peeeeeepppppssssss

Step-by-step explanation:

wussup

me ayudan de nuervo porfavor

Answers

A= 162

B=88

To lazy to do c

Find the value of x. Round your answer to the nearest tenth.

Answers

Answer:

63

Step-by-step explanation:

The answer to the question is 63

If a population of 100 caterpillars is growing at 0.5 per capita per year, how many caterpillars will there be after one year?
50 100 150 500

Answers

Answer:

150

Step-by-step explanation:

Answer:

I hope this helps.

Step-by-step explanation:

Suppose two trains, say A and B are initially 125 miles apart on the same east-west track. Train A is initially to the west of train B. Train A begins to head due east at 25 mph, and train B begins to head due west at 20 mph. To the nearest minute, how long will it take for the two trains to collide?

Answers

Answer:

[tex]167\ \text{minutes}\text{ or }166\ \text{minutes}\ \text{and}\ \text{40}\ \text{seconds}[/tex]

Step-by-step explanation:

Distance between the two trains is 125 miles.

So, when they will collide they would have covered a distance of 125 miles together.

The time that will pass for both the trains will be same but the distances covered will be different as their speeds are different.

[tex]\text{Distance}=\text{Speed}\times \text{Time}[/tex]

[tex]25t+20t=125\\\Rightarrow t=\dfrac{125}{45}\\\Rightarrow t=\dfrac{25}{9}\ \text{hours}=\dfrac{25}{9}\times 60\times 60=10000\ \text{s}=166.67\ \text{minutes}\\\approx 167\ \text{minutes}\\=166\ \text{minutes}\ \text{and}\ \text{40}\ \text{seconds}[/tex]

[tex]167\ \text{minutes}\text{ or }166\ \text{minutes}\ \text{and}\ \text{40}\ \text{seconds}[/tex]

The function f(x) = 4 x 3^x models the population of tadpoles in a frog pond after x years. Write a recursive formula to model the situation

Answers

Answer:

[tex]f(n) = 3T_{n-1}[/tex]; [tex]T_1 = 12[/tex]

Step-by-step explanation:

Given

[tex]f(x) = 4*3^x[/tex]

Required

Write as a recursive function

Substitute 1 for x.

[tex]f(1) = 4*3^1 = 4 * 3 = 12[/tex]

[tex]f(2) = 4*3^2 = 4 * 9 = 36 = 12 * 3[/tex]

[tex]f(3) = 4*3^3 = 4 * 27 = 108 = 36 * 3[/tex]

Following the above pattern:

[tex]f(n) = T_{n-1} * 3[/tex]

[tex]f(n) = 3T_{n-1}[/tex]

Hence, the recursive function is:

[tex]f(n) = 3T_{n-1}[/tex]; [tex]T_1 = 12[/tex]

A right triangle is labeled with the hypotenuse 12m and an acute angle 23 degree
. Which of the following equations could be used to find the side length of one of the legs of the triangle.
A) sin. 23=12/x
B)cos =12/x
c)sin 23 =x/12
D) tan 23=x/12

Answers

Answer:

sin23=x/12

sin23(12)=x

0.391(12)=x

x=4.7 or 5

Simplify the following polynomial
(3y^2- 4y+1)(-y^2+y-2

Answers

Answer:

-3y^4+7y^3-11y^2+9y-2

£1500 is invested for 3 years at 2% per year simple interest. Work out the total interest.

Answers

2÷100=0.02

1500×0.02=30

30×3=90

Answer:

£90

Step-by-step explanation:

Simple interest (I ) is calculated as

I = [tex]\frac{PRT}{100}[/tex] ( P is principal, R is rate of interest and T time in years )

Here P = 1500, R = 2 and T = 3 , then

I = [tex]\frac{1500(2)(3)}{100}[/tex] = 15 × 2 × 3 = 30 × 3 = £90

WHOEVER ANSWERS FIRST GETS BRAINLIEST!! PLZ EXPLAIN CLEARLY

A standard sheet of paper in the United States is 11 inches long and 8.5 inches wide

Each inch is 2.54 centimeters. How long and wide is a standard sheet of paper in centimeters?
A standard sheet of paper in Europe is 21.0 cm wide and 29.7 cm long. Which has the greater area, the standard sheet of paper in the United States or the standard sheet of paper in Europe?

Answers

Answer:

Step-by-step explanation:

1 in = 2.54 cm

Part (a)

Answer: 8.268 in

Part (b)

Answer: 11.693 in

Part (c)

In SI units standard-sized paper is 21.0 cm by  29.7 cm, which is equivalent to 8.268 in by 11.693 in.

Answer: 8.268 in by 11.693 in.

Part (d)

The U.S sized standard paper is 8.0 in by  11.0 in. Therefore the SI (internationally) sized paper is longer.

Part (e)

If the U.S> adopts the SI standard for letter-sized paper, both the width and length of standard paper will have to be increased. Therefore letter-sized paper will occupy a larger area and will be heavier if the thickness and density do not change.

help me please . i hope to find a solution :((​

Answers

Answer:

277.778 m/s

Step-by-step explanation:

just divide by 3.6

Simplify (8+(-3))(-5 3/5) Help!

Answers

Answer:

28 i believe

Step-by-step explanation:

the answer is
-28!
(8+(-3))(-5 3/5)
when there’s a + in front of an expression in parenthesis, the expression remains the same.
(8-3)x(-5 3/5)
convert the mixed number to an improper fraction.
(8-3)x(-28/5)
subtract the numbers
5x(-28/5)
multiplying a positive and a negative equals a negative: (+)x(-)=(-)
-5x28/5
reduce the numbers with the greatest common factor 5
-28

Two groups of bikers leave the same camp heading in different directions. Each group travels 4 miles, then changes direction and travels 1.4 miles. Group A starts due east and then turns 48° toward north. Group B starts due west and then turns 32° toward south. Which group is farther from camp?

1. Group A is farther from camp.
2. Group B is farther from camp.
3. Group A and Group B are the same distance from camp.
4. Not enough information is given.

Answers

Group B is farther from camp.

Group B is farther from camp in comparative to other Group A.

What is Direction Sense?

Direction sense ability is  to find one's way around easily in a new place a good/poor sense of direction.

Here, Distance travel together = 4 miles.

         After changing their direction distance covered by them = 1.4 miles.

       Group A turns 48⁰ towards north

    So, total distance covered by group A = 1.4 + 4 X sin 48⁰

                                                                    = 1.4 + 4 X 0.7341

                                                                    = 4.34 miles.

     Group B turns 32⁰ towards south.

Similarly, distance covered by group B = 1.4 + 4 X cos 32⁰

                                                                = 1.4 + 4 X 0.8480

                                                                = 4.79 miles.

Thus, Group B is farther from camp in comparative to other Group A.

Learn more about Direction sense from:

https://brainly.com/question/9238896

#SPJ2

Which expressions are equivalent?
o šk-şi and şi +
o *-Žj and -3k+ şi
o 1/3 - 2/1 and 1 1 2 3 4
0 1 4 - 2 21 and 1 / 1 - 1 / 4
PLZZ HURRY
FOR 100points

Answers

Answer:

3 is equvalent...........

The expressions which are equivalent are; 1/3 - 2/1 and -1 2/3

Equivalent expressions

According to the question;

We are required to determine which expressions are equivalent.

The equivalent expressions are; 1/3 - 2/1 and -1 2/3.

Upon evaluation; 1/3 - 2/1;

1/3 - 2/1 = 1 - 6/3 = -5/3

-5/3 = -1 2/3

Read more on equivalent expressions;

https://brainly.com/question/11258067

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