Question: A commuter arrives at the above station to catch a train. Although she doesn’t know its exact arrival time, she does know it will arrive at any time in the next four minutes. Suppose X denotes the amount of time the commuter waits for the train. Use this information to find the following probabilities.

a) \(\Pr \left( X=2.25 \right)\)

b) \(\Pr \left( X\le 2.75 \right)\)

c) \(\Pr \left( 1.25\le X\le 3.75 \right)\)

d) \(\Pr \left( X\ge 2.95 \right)\)