1.)The waiting times between a subway departure schedule and the arrival of a passenger are uniformly distributed between 0 and 9 minutes. Find the probability that a randomly selected passenger has a waiting time lessthan 3.75 minutes.

Find the probability that a randomly selected passenger has a waiting time lessthan 3.75 minutes.

2.)A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 45.0 and 55.0 minutes. Find the probability that a given class period runs between 51.25 and 51.75 minutes.

Find the probability of selecting a class that runs between 51.25 and 51.75 minutes.