A teacher randomly selects 10 out of her 30 students and finds that the mean height of those 10 students is 5′2". Is this a sample mean or a population mean, and which symbol would be used to denote it?

Answers

Answer 1

Answer:

Sample mean

Symbol: [tex]\frac{}{x}[/tex]

Step-by-step explanation:

Given

[tex]Population = 30[/tex]

[tex]Sample = 10[/tex]

[tex]Mean\ of\ the\ selected\ 10 = 5'2"[/tex]

Solving (a): Is it sample mean or population mean

From the question, we understand that 10 were selected from a total of 30.

And the mean of the selected 10 is 5'2"

The selected 10 is referred to as sample and the mean of the 10 is the sample mean

Solving (b): Symbol to use.

The symbol for sample mean is: [tex]\frac{}{x}[/tex]

Answer 2

Answer:

Step-by-step explanation:

its sample mean x just took the test.


Related Questions

I need help fast I’ll really appreciate it.

Answers

Answer:

11 : 8

Step-by-step explanation:

3 + 8 = 11

Answer:

11:8

Step-by-step explanation:

I think i may be wrong I hope this is right

If the cost of a dozen pencil is 96 . find the cost of 18 pencil plz fast i have to summit now ​

Answers

Answer:

Cost of dozen pencils = 96

Cost of one pencil = 96 / 12 = Rs.8

Cost of 18 pencils = 8×18 = Rs.144

Step-by-step explanation:

Hope it helps

Mark me as brainliest plz

Step-by-step explanation:

Find the equation of the line.
Use exact numbers.
y = X+

Answers

Answer:

y=-1/3x-6.. .. .. .. .. ..

y = -1/4x - 6

Explanation

Which of the following are accurate factors of 3x2 – 75 when multiplied together? Select the two correct answers. (2 poin
03(x - 5)
(x + 5)
O (3x + 5)
(-5)

Answers

Answer:

First and last

Step-by-step explanation:

15 points
Yolanda received her electric bill on June 18th and paid it two weeks later. What was the date that Yolanda paid her electric bill? A. June 32 B. June 24 C. July 2 D. July 4

Answers

Answer:

July 2

Step-by-step explanation:

June has 30 days total.

2 weeks is 7(2) or 14 days

18 + 14 = 32

July 2nd would be the correct option because the 2 extra days that come from 32 would go into July. Hope this helps :)

13/5 ÷ 4/5 = ??????????​

Answers

I am not good with explianing but here is the answer: 9/5... Basic you subtract the when they ask for you to divid fractions 13-4.

what is the proof by reduction to absurdity?​

Answers

Answer:

Reductio ad absurdum is a Latin phrase that means "reduction to the absurd". The phrase describes a kind of indirect proof. It's proof by contradiction and is a common form of argument. It shows that a statement is true because its denial leads to a contradiction or a false or absurd result.

Combine like terms. Your answer should contain decimals.
0.5(x4-5)+12
4 is a power

Answers

Answer:

0.5x⁴ - 9.5

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Distributive Property

Algebra I

Terms/Coefficients

Step-by-step explanation:

Step 1: Define

0.5(x⁴ - 5) + 12

Step 2: Simplify

Distribute 0.5:                                                                                                 0.5x⁴ - 2.5 + 12Combine like terms:                                                                                       0.5x⁴ - 9.5

Maria needs $2.35 to buy a magazine. The only money she has is a jar of nickels and dimes. Write an equation in standard form for the different amounts of nickels and dimes she could use.

Answers

Answer:

Step-by-step explanation:

sorry need the points

Complete the statement to illustrate the commutative property. (PLEASE ANSWER FAST FOR BRAINLIEST!!!)
10 + (9 + 11) = 10 + (11 + ___ )

a. 11
b. 20
c. 9
d. 10

Answers

Answer:

9

Step-by-step explanation:

Drag steps in the given order to evaluate this expression,
-3(-3+2) - 6

Answers

Answer:-3

Step-by-step explanation:

The half-life of krypton-91 (91Kr) is 10 s. At time t = 0 a heavy canister contains 3 g of this radioactive gas. Find a function m(t) = m02−t/h that models the amount of 91Kr remaining in the canister after t seconds.

Answers

The answer is m(t) = 3.2 -t/10

What is (f o g) (3) if f (x) =3x-1 and g(x) = 4x^2 -9?

Answers

i might not know the answer to this but theres an app called photo math, you scan your problem and it solves it for you!

Answer:

4x+1

Step-by-step explanation:

graph the function. Then State the domain and range. Also increasing and decreasing​

Answers

Answer:

See below, I will let graphing part to yourself.

Step-by-step explanation:

First function: domain: [tex][-9,\infty)[/tex], range: [tex](-\infty, -2][/tex], decreasing

Second function: domain: [tex](-\infty, \infty)[/tex], range: [tex](-\infty, \infty)[/tex], increasing

Third function: domain: [tex][3, \infty)[/tex], range: [tex][-5,\infty)[/tex], increasing

Answer:

First function: domain: [-9,\infty)[−9,∞) , range: (-\infty, -2](−∞,−2] , decreasing

Second function: domain: (-\infty, \infty)(−∞,∞) , range: (-\infty, \infty)(−∞,∞) , increasing

Third function: domain: [3, \infty)[3,∞) , range: [-5,\infty)[−5,∞) , increasing

0.2 =% yssssssssssssssssssssssssssssssssssssssssss

Answers

Answer:

20%

Step-by-step explanation:

If it was 0.3 it would be 30% or if it was .35 it would be 35%.

0.3 is another way of writing 0.30 but since it's just a zero, you don't really have to write 30.

Answer:

Good luck your so lucky

Step-by-step explanation:

12). Omar has $8,274 in a savings account that earns 10.5% interest, compounded annually. To the nearest cent, how much will he have in 2 years? * O A). $1,737.54 O B). $1,828.76 C). $10,011.54 OD). $10,102.76​

Answers

Answer:

.

Step-by-step explanation:

PLEASE HELP MEEEEEE

f(x)=4x + 5
f (-3)

Answers

Answer:

evaluate the function with -3 as x value

Step-by-step explanation:

4(-3) + 5

-12 + 5

= -7

Answer:

The answer is -7

Step-by-step explanation:

Use the given functions to set up and simplify  f ( − 3 ) .

Hoped this helped!

brainly, please?

Does anyone know this answer ?

Answers

Use photo math or Socratic

Order these fractions from least to greatest: 1/2 5/6 2/3 3/5

Answers

Answer:

1/2 < 3/5 < 2/3 < 5/6 least to greatest

Step-by-step explanation:

help lol 30 points. i don’t understand the test is timed. brainliest once i get 2 answers.

Answers

Answer:

mmmmmmm........

Step-by-step explanation:

di ko po alam

In the diagram below of parallelogram ROCK, m angle is 70 degrees and m angle ROS is 65 what is the value of x

Answers

Answer:

135

Step-by-step explanation:

The measure of the angle KSO is 135°

What is a parallelogram?

A parallelogram is a special type of quadrilateral that has both pairs of opposite sides parallel and equal.

Given that, In the diagram below of parallelogram ROCK, m angle is 70 degrees and m angle ROS is 65

We know that, opposite angles of a parallelogram are equal,

Therefore, ∠ ORK = 70°

In triangle, SRO, ∠ ORK and ∠ ROS are interior angles, and ∠ KSO is an exterior angle,

We know, The measure of an exterior angle of a triangle is equal to the sum of the measures of the two non-adjacent interior angles.

Therefore, ∠ KSO = ∠ ORK + ∠ ROS

∠ KSO = 135°

Hence, The measure of the angle KSO is 135°

For more references on parallelogram, click;

https://brainly.com/question/29147156

#SPJ2

help !!! If gasoline costs $2.399 per gallon at your local station, and you fill up your car with 11.25 gallons of gas, how much will you actually spend?

Answers

Answer:

26.8875

Step-by-step explanation:

Answer:

You will spend $26.98875 on gasoline

4
Write an exponential decay
equation with a rate of 25% and
an initial value of 6.

Answers

Sorry I dont no hala da yazıyor ben ne oldu sana böyle

Can someone help with this problem (time sensitive)​

Answers

Answer:

∠D = 52º

∠E = 32º

∠F = 96º

Step-by-step explanation:

the sum of interior angles of a triangle equals 180º

so: (x + 20) + (3x) + 32 = 180

     3x + x + 20 + 32 = 180                  combine like terms

     4x + 52 = 180                                subtract 52 from both sides

     4x = 128                                         divide both sides by 4

     x = 32

plug x into each angle measure to get them:

∠D = (32) + 20 = 52º

∠E = 32º (given)

∠F = 3(32) = 96º

si Luis ocupa una butaca de tren absorto
. luis está quiero o avanza​

Answers

Answer:

quiero

Step-by-step explanation:

PLEASE HELP ONE QUESTION THATS IT

Answers

Answer:

-3,2   -2,4  1,-1

Step-by-step explanation:

x + 7 = 9
What does X equal?

Answers

2 i hope this helps ok bye
X = 2 because if you subtract 7 from 9 it would equal 2

Solve the linear equation 3+5x=3

Answers

Step-by-step explanation:

the answer is

3+5x=3

5x=0

x=0

-2x - 6 = 2 - 4x - (x - 1)
solve

Answers

Answer:

Step-by-step explanation:

-2x - 6 = 2 - 4x - x + 1

-2x - 6 = 3 - 5x

3x - 6 = 3

3x = 9

x = 3

-2x-6 = 2-4x - (x-1)

-2x-6 = 2-4x -x + 1

-2x-6 = 3 - 5x

-2x + 5x = 3+6

3x = 9

devide 3 to both side

x = 3

The model below is shaded to represent 9/10

Answers

Answer:

0.9

Step-by-step explanation:

it is 0.9 because the 10th would put the decimal from 9.0 over one to the left so 0.9
Other Questions
Ingrid earns money babysitting. She made $90 babysitting for 8 hours. Write an equation in the form = and determine how much money Ingrid made for every hour, , she spent babysitting. EmbryologyDefine: Use it in a sentence: You are starting a new job in sales for the company Buy n Large. Your hourly wage is $10.00 per hour and you get time and a half for anything over 40 hours. Based on a 5-day work week, 8-hour day, and 52 week year, determine your annual gross base salary.A. $21,650B. $18,798C. $20,800 D. $19,980 Fiona was thinking of a number. Fiona divides by 8, then adds 11 to get an answer of 7. What was the original number? Does anyone know this answer ? jamie with his friends(sing/sings)at a christmas party. whats the correct meaning of impact in the sentencethe impact of her words had me thinking all day The half-life of krypton-91 (91Kr) is 10 s. At time t = 0 a heavy canister contains 3 g of this radioactive gas. Find a function m(t) = m02t/h that models the amount of 91Kr remaining in the canister after t seconds. 0.2 =% yssssssssssssssssssssssssssssssssssssssssss a) The regular price of a T-shirt is $18. What is the discounted price? b) If the regular price of an item is x dollars, what is the discount price in dollars? c) The discounted price of a hat is $18. What is the regular (original) price? help fast!!! Explain, in writing, the steps in graphing and finding the solution to the system of equations.y = x + 2y=-x-2 3. Myers won numerous writing awards for writing African American literature forchildren and young adults, especially boys. Why do you think he won so manyawards? Explain your answer. Proper degree of the adjective 1. Iron is ____(hard) than stone.2. She was as____(white) as ivory3. Home is the____(safe) place4. I shall prefer this question because that question is_____(scoring) than this. (Hint: use less)5. Pen is_____(mighty) than sword.6) The baby is as_____(lovely) as a flower7. I can not rely on him. He is the____(responsible) member in our team(Hint : use least)8. Rahul is as _____(intelligent) as Nandini9. Debarghyo is one of my_____(good) friends.10. She scroed the____(high) marks in exam.11) I have never heard such a ____(funny) story as this .12) This road is not so______(narrow) as that. can some tell me the answer brainliest going to first correct answer Leslie works in an SDLC team. When Leslie edits a file, it gets saved as an altered version. Later all the altered versions are combined to form thefinal file. Which type of version control process does Leslie's company use?OA.file merging.file locking.file subversionOD.file conversionO E.file diversion Im sorry its so long! But this is for an overdue test and I need an answer ASAP!! Please use the following cartoon to answer questions #6-8 6. What does the image in this political cartoon represent? *The first US Government survived many difficult problemsThe first US Government gave the national government a lot of powerThe constitution we have today was created because of the problems caused by the Articles of ConfederationDue to the weaknesses of the federal government under the Articles of Confederation the nation would face difficult times7. What do the waves in this picture represent? *Rights provided by the Bill of RightsWeaknesses to the Articles of ConfederationProblems the US government was able to overcome under the Articles of ConfederationStrengths of the national government under the Articles of Confederation8. Based on this cartoon what phrase is used to summarize all the weaknesses of the Articles of Confederation? *No Power to Enforce LawsNo National Court SystemRough Sailing AheadNo Power to Collect Taxes Select all the correct answers.Which two words describe the atmosphere in the passage?Treasure Islandby Robert Louis Stevenson (excerpt)Then there followed a great to-do through all our old inn, heavy feet pounding to and fro, furniture thrown over, doors kicked in, until the very rocks re-echoed and the men came out again, one after another, on the road and declared that we were nowhere to be found. And just the same whistle that had alarmed my mother and myself over the dead captains money was once more clearly audible through the night, but this time twice repeated. I had thought it to be the blind mans trumpet, so to speak, summoning his crew to the assault, but I now found that it was a signal from the hillside towards the hamlet, and from its effect upon the buccaneers, a signal to warn them of approaching danger.Theres Dirk again, said one. Twice! Well have to budge, mates.Budge, you skulk! cried Pew. Dirk was a fool and a coward from the firstyou wouldnt mind him. They must be close by; they cant be far;you have your hands on it. Scatter and look for them, dogs! Oh, shiver my soul, he cried, if I had eyes!This appeal seemed to produce some effect, for two of the fellows began to look here and there among the lumber, but half-heartedly, I thought, and with half an eye to their own danger all the time, while the rest stood irresolute on the road.excitementdullnessmerrimentdangersleepiness PLEASE HELP ME ON SOME OF THESE!!! I AM SO CONFUSED!! if 3 mol of fe2o3 reacts with 5 mol al what is the maximum amount of fe that was produced. Explanation please! Elizabeth Cady Stanton wasThe Leader of the Prison Reform Movement.The leader of the Women's Rights Movement,The Leader of the Prison Reform Movement.The Leader of the Labor Union