57% of all violent felons in the prison system are repeat offenders. If 32 violent felons are randomly selected, find the probability that a. Exactly 18 of them are repeat offenders. _____ b. At most...

57% of all violent felons in the prison system are repeat offenders. If 32 violent felons are randomly selected, find the probability that

a. Exactly 18 of them are repeat offenders. _____
b. At most 18 of them are repeat offenders. _____

c. At least 16 of them are repeat offenders. _____
d. Between 12 and 17 (including 12 and 17) of them are repeat offenders. _____