a At a particular university, all classes start on the hour, with the earliest stai'ttime at 7 am. and the latest start time at 8 pm. A random sample of freshmen showed the percentages of freshman preferring the listed start times. Find the probability that a freshman at this university would prefer a morning class time (class time starting at T ,11 em). Class Start 9, 10, or 11 12 or 1 2, 3, or 4 5 p.m. or 7 or B a.m. Time a.m. p.m. p.m. later 56 Preferring 10% 010% o 22% O 32% O 34% O 66% USATooay reported that approximately 25% of all state prison inmates released on parole betome repeat offenders while on parole. Suppose the parole board is examining five prisoners up for parole. Letthe variable x" represent the number of parolees (out offive) on parole who become repeat offenders. Find the probability that three or more of the ve parolees will be repeat offenders. 13(3) 0.237 0.396 0.264 0.088 0.015 0.001 O 0.088 O 0.104 O 0.897 O 0.912 Consider the following probability distribution. Is it a valid probability distribution? Explain. Moss 0.15 0.15 O No, the probabilities add up to a value less than 1. O No, the probabilities add up to a value greater than 1. O No, the probabilities add up to a value equal to 'I. 0 Yes. the probabilities add up to a value less than 1. 0 Yes. the probabilities add up to a value greaterthan 1. 0 Yes, the probabilities add up to a value equal to 1