5 Calculate by hand the mean and standard deviation for the

5. Calculate (by hand) the mean and standard deviation for the binomial distribution with the probability of a success being ½ and n = 10. Either show work or explain how your answer was calculated. Use these formulas to do the hand calculations: Mean = np, Standard Deviation = (4 points)

Solution

Mean=np=1/2*10=5

Standard deviation=sq rt of npq

=sq rt of 5*1/2=1.58