Blood type AB is found in only 3% of the population

A.) Blood type AB is found in only 3% of the population. If 165 people are chosen at random, find the probability of the following. (Round your answers to four decimal places.)
(a) 5 or more will have this blood type

(b) between 5 and 10 will have this blood type


B.)Given that x is a normal variable with mean μ = 48 and standard deviation σ = 6.6, find the following probabilities. (Round your answers to four decimal places.)
(a) P(x ≤ 60)

(b) P(x ≥ 50)

(c) P(50 ≤ x ≤ 60)