The trainer for a professional football team has found that, on the average, his team experiences 2.3 sprained ankles per 1000 game minutes. If a game lasts 60 minutes, and the number of game minutes between ankle sprains is exponentially distributed, determine the probability that the next ankle sprain will occur
a. during the team's next game.
b. sometime during the team's next ten games.
c. at the moment the 2-minute warning is sounded in the next game.