In the military, 1/4 of an enlisted person's time is spent sleeping and eating, 1/12 is spent standing at attention, 1/6 is spent staying fit, and 2/5 is spent working. the rest of the time is spent at the enlisted person's own discretion. how many hours per day does this discretionary time amount to?

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? probability distribution px(x) 6 hours 7 hours 8 hours 9 hours 10 hours 0.62 0.78 пол