If a binomial distribution applies with a sample size of n = 20, find the values below.

a.	The probability of 5 successes if the probability of success is 0.55
b.	The probability of at least 7 successes if the probability of success is 0.50
c.	The expected value, n = 20, p =0.70
d.	The standard deviation, n = 20, p = 0.70
	Round by 4 decimal places