1. The number of minutes of playing time of a certain high school basketball player in a randomly chosen game is a random variable whose probability density function is given below.

.050 -

.025 -

10 20 30 40 Find the probability that the player plays

(a) over 15 minutes;

(b) between 20 and 35 minutes;

(c) less than 30 minutes;

(d) more than 36 minutes.