Bating probabilities.....someone who knows statistics please help me

when i played baseball (from age 8 through high school), i had an overall batting average of .325 ( meaning my probability of getting a hit in any given at bat was 0.325

a) If i were to have 4 at bats in a particular game , what is the probability that i had at least 1 hit?

b) If i were to have 300 at bats in one season, what is the probability that i had at least 120 hits ( giving me a .400 average, which is pretty good, for those of you that don't know)?