Answer to Question #172011 in Statistics and Probability for Marjorie

Question

if population has a variance of 7.4 what is the variance of the sampling distribution of it means?the sampling distribution has a sample size of 2 and all possible samples are drawn with repalacements

Answer 1

$V(\bar x) =\frac{\sigma^2} {n} =\frac{7.4} {2}=3.7$