A Binomial Distribution Has 50 Trials (N = 50) with a Probability

Multiple Choice

A binomial distribution has 50 trials (n = 50) with a probability of success of 0.50 ( $\pi$ =0.50) . To use the normal distribution to approximate the binomial, what are the mean and standard deviation?

A) µ = 25 and $\sigma$ = 3.5355
B) µ =25 and $\sigma$ = 12.5
C) µ =25 and $\sigma$ = 4.33
D) µ =50 and $\sigma$ = 100