a simple problem

#1
in elections , the mean of candidates per an electoral district was 60 candidates with a standard deviation 10 candidates.. 80% were males . for sample size of 100 consider p^sample pro potion of male candidates ,Xbar the sample mean of candidates per district of election and s^2 sample variance of number of candidates

find


3- the expected value of s^2
4 the expected value of P^
5- the variance of sampling distribution of P^