six girls and four boys have entered the science fair. first, second, and third place awards are to be given out. what is the pr
2 answers:
You might be interested in
Answer:
Step-by-step explanation:
The mean and standard deviation of the sampling distribution of p is given by :-
, where p= population proportion.
n= sample size.
Let p represent the sample proportion of Americans over the age of 65 that were male.
Given : The proportion of Americans over the age of 65 were male.
p= 43.1%=0.431
sample size : n= 60
Then, the mean and standard deviation of the sampling distribution of p will be :-
Hence, the mean and standard deviation of the sampling distribution of p :