Two buses depart two cities moving in the same direction. the speed of the first bus is 54 mph which is 60% of the speed of the second bus. the faster bus caught up to the other bus one hour and thirty minutes after the departure.

The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? 0.62 0.78 0.84 0.96