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Savatey [412]
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?
Mathematics
1 answer:
Vaselesa [24]3 years ago
7 0

Answer:

Step-by-step explanation:

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PICTURE IS SHOWNN HELP
just olya [345]
C and D are correct because 25 > 35 so that's C.


Its also D because they are not equal.


Hope this helps :)
3 0
3 years ago
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Please help me is due today and I am being timed
ivanzaharov [21]

Answer:

B

Step-by-step explanation:

3 0
3 years ago
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What is the equation of the following line? (0,0) (6,2)
leva [86]

If you want it to be a slope intercept form, the first you have to find slope.

y2-y1/x2-x1

2-0/6-0

2/6 = 1/3

Then you need to find the y intercept. Plug in the x and y value in y=mx+b.

2=1/3(6)+b

2=2+b

0=b

ANSWER: y=1/3x+0

Hope this helps and is correct :)

8 0
3 years ago
An airplane descends 1.5 miles to an elevation of 6.05.Find the elevation of the plane befor its descent the intial elevation of
LuckyWell [14K]

Answer:

7.55 miles

Step-by-step explanation:

Given that :

Distance of descent = 1.5 miles

New elevation point after descent = 6.05 miles

The initial elevation of the plane before descent will be :

New elevation point after descent + Distance of descent

(6.05 miles + 1.5 miles)

= 7.55 miles

8 0
3 years ago
What is the value of x
pochemuha

This is the isosceles triangle. Therefore, the angles at the base are congruent.

We know that the sum of the measures of the angles in a triangle is 180°.

Therefore we have the equation:

38^o+x^o+x^o=180^o

38^o+2x^o=180^o        <em>subtract 38 from both sides</em>

2x^o=142^o       <em>divide both sides by 2</em>

x^2=71^o

<h3>Answer: x = 71.</h3>
5 0
3 years ago
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