An elementary school has a population of 635 students, 600 of whom have received the chicken pox vaccine. the school nurse wants to make sure that the school meets all state requirements for vaccinations at public schools.

find the population proportion, as well as the mean and standard deviation of the sampling distribution for samples of size n=120.

Given : An elementary school has a population of 635 students, 600 of whom have received the chicken pox vaccine.

Then population proportion =

For n=120

The mean and standard deviation of the sampling distribution of the sample proportions is given by :-

Thus, the mean and standard deviation of the sampling distribution of the sample proportions is given by :-

in the attachment.   i didn't see your choices.   the word which means there is choices.

step-by-step explanation:

(x,y)

x tells you how much left or right you go from the origin

y tells you how much down or up you go from the origin

so for example (-3,2), you go left 3 and up twice. i denoted which of the ordered pairs is which in my graph.