question that follows. Do not round any of your responses. (If necessary, consult a list of formulas.) (a) Fill in the missing probabilities
P (R|F)=0 P(FN R) - 0 P(F)=0.25 P(FOR) 0 P(RF) 0.2 P(RF)-0 P( FR)=0
P(F)-0 P(FOR)-0 P(RF)=0.5 (b) What is the probability that a randomly chosen moviegoer attended the romantic comedy?
For a recent evening at a small, old-fashioned movie theater, 25% of the moviegoers were female and 75% were male. There were two movies playing that evening. One was a romantic comedy, and the other was a World War II film. As might be expected, among the females the romantic comedy was more popular than the war film: 80% of the females attended the romantic comedy. Among the male moviegoers the romantic comedy also was more popular: 50% of the males attended the romantic comedy. No moviegoer attended both movies. Let F denote the event that a randomly chosen moviegoer (at the small theater that evening) was female and F denote the event that a randomly chosen moviegoer was male. Let R denote the event that a randomly chosen moviegoer attended the romantic comedy and R denote the event that a randomly chosen moviegoer attended the war film. Fill in the probabilities to complete the tree diagram below, and then answer the For a recent evening at a small, old-fashioned movie theater, 25% of the moviegoers were female and 75% were male. There
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