Historically, 1.3% of Division 1 football starting players get pro contracts.
A) Of the 72 senior starting players in a certain conference, what is the probability that 3 or more will receive pro contracts?
B) Recalculate the answer to part A) using an appropriate approximate method.
As a note, can someone please explain the solution to me so I understand the problem. I don't just want the final answer.