# Prove formula of Taro Yamane

• May 20th 2011, 06:40 AM
mahefo
Prove formula of Taro Yamane
In statistics, we use calculating method of Taro Yamane (Taro Yamane) to find sample size. His formula has been set as follow:
$n=\frac{N}{1+Ne^2}$
where n=sample size, N=population size, e=the error of sampling.
Could you help me to prove this formula? Thanks a lot.