Answer to Question #328716 in Statistics and Probability for Tenshi

Question

if the given samples are 45, 47, 48, 51, 50, 55, 49, 48, 55, and 54. compute the point estimate of the population variance.

Answer 1

$\mu=(45+47+48+51+50+55+49+48+55+54)/10=50.2$

$D=\frac{\sum(x-\mu)^2}{n-1}=\frac{27.04+10.24+4.84+0.16+0.04+23.04+1.44+4.84+23.04+14.44}{10-1}=12.1$