Michael Jordan had a career free throw percentage of 83.8% during his tenure with the Chicago Bulls.

Michael Jordan had a career free throw percentage of 83.8% during his tenure with the Chicago Bulls. In a random selection of 10 free throws he took over his career, calculate the following probabilities, using a binomial distribution with parameters n=10 and p=0.838. Show all work.

a. probability he makes at least 9 free throws, P(X≥9)