Two friends, Sam and Joseph, are often late for class Joe...

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Two friends, Sam and Joseph, are often late for class. Joe is late with p = 0.20 and Bill is late with p= 0.30. Because they are coming from the same location, their arrival times are correlated. Given that Joe is late, the conditional probability that Bill is also late is 0.80. What is the probability that both arrive to class on time? Pr (not late) = ______________ Following from problem 3 above, assume that lateness on any day is independent of lateness on the previous day. What is the probability that Bill is late three days in a row? Pr = ___________ Two friends, Sam and Joseph, are often late for class. Joe is late with p = 0.20 and Bill is late with p= 0.30. Because they are coming from the same location, their arrival times are correlated. Given that Joe is late, the conditional probability that Bill is also late is 0.80.
What is the probability that both arrive to class on time? Pr

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