Bus or Subway A man takes either a bus orthe subway to work with probabilities .3 and
Chapter 4, Problem 114(choose chapter or problem)
Bus or Subway A man takes either a bus orthe subway to work with probabilities .3 and .7,respectively. When he takes the bus, he is late 30% ofthe days. When he takes the subway, he is late 20% ofthe days. If the man is late for work on a particularday, what is the probability that he took the bus?
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