Question

In simple random sampling without replacement (SRSWOR), variance of sample mean is
A) $\lgroup\frac{N-n}{Nn} \rgroup S^{2}$
B) $\lgroup\frac{n-N}{Nn} \rgroup S^{2}$
C) $\lgroup\frac{N-1}{Nn} \rgroup S^{2}$
D) $\lgroup\frac{N-n}{N} \rgroup S^{2}$

Answer 1

Right answer is Option B