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3 years ago

13

The population mean score for a particular exam is 74 and the standard deviation is 9. What are the mean and standard deviation

of the class average score for classes composed of 36 students randomly drawn from the population?

1 answer:

Vaselesa [24]3 years ago

7 0

Answer:

Step-by-step explanation:

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Here is another math question 6/3+(-1/3)

gtnhenbr [62]

<span>6/3+(-1/3)
</span><span>= 6/3-1/3
= 5/3
= 1 2/3</span>

6 0

3 years ago

For the following right triangle, find the side length x. Round your answer to the nearest hundredth.

wlad13 [49]

Answer:

4.80

Step-by-step explanation:

To find the solution to this problem we will use the Pythagoras theorem.

${c}^{2} = {a}^{2} - {b}^{2}$

$= \sqrt{ {12}^{2} - {11}^{2}} \\ = 4.7958... \\ = 4.8$

4 0

2 years ago

Denis let go of a penny at the top of a well and the penny fell straight down to the bottom of the well the top of the well was

Furkat [3]

Answer:

The distance between the top of the well and the bottom of the well was 12 1/2

Step-by-step explanation:

(a.k.a B) i did it and got it right :)

8 0

2 years ago

Who is known as the "founding father of geometry?"?

ale4655 [162]

<span>Euclid is considered the father of Geometry.</span>

3 0

3 years ago

Read 2 more answers

Please help me y’all!!!!

DerKrebs [107]

Step-by-step explanation:

a^2 + 2(b - 6) - 17. a = -7 b = 2

= (-7)^2 - 2(2 - 6) - 17

= 49 - 4 + 12 - 17

= 40

6 0

2 years ago