According to the 2010 U. S. Census, 24% of U. S. residents are under 18 years old. Suppose we take a random sample of 500 U. S. residents. Let X = the number of people in the sample who are under 18 years old. 1. Calculate the mean and standard deviation of the sampling distribution of X.
2. Interpret the standard deviation from part (a).
3. Justify that it is appropriate to use a normal distribution to model the sampling distribution of X.
4. Using a normal distribution, calculate the probability that the number of people under 18 years old in a random sample of size 500 is between 100 and 110.

b. the decimal could be two-tenths.

step-by-step explanation:

what? ?

what type of question is thiss

step-by-step explanation:

it's 100

step-by-step explanation:

22, 28, 34, 40, 46

b)   f(n) = 6n + 16

  n = what is the number of the row ( 22 would be row 1) so if we replaced n with 1, we would get 22

c)   the  14th  row will have 100 seats

(1)   (2)   (3)   (4)   (5)   (6)   (7)   (8)   (9)   (10) (11) (12) (13) (14)

22 | 28 | 34 | 40 | 46 | 52 | 58 | 64 | 70 | 76 | 82 | 88 | 94 | 100

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it's a proportional graph.

step-by-step explanation:

8 x 5 = 40         (and you have -8x and -5y)

x= absiss

y= orderly

so you have a proportional graph.