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Unformatted text preview: husband outlived the wife. 7.12 An individual could determine his or her probability of winning this game by playing it a large number of times and recording how many games he or she won out of the total number of games played. 7.17 a. BY, BS, BA, YS, YA, SA. b. 1/6. 7.26 a. The approximate probability = 22/190 = .1158 that a randomly selected person will pick the number 3. b. The approximate probability = (2+6)/190 = 8/190 = .0421 that a randomly selected person will pick either 1 or 10. c. The approximate probability = (2+22+18+56+14)/190 = 112/190 = .5895 that a randomly selected person will pick an odd number. 7.35 a. No, they are not independent. P(A in both classes) P(A English) P(A in history), as it would for independent events. b. P(A in either English or history) = P(A in English) + P(A in history) P(A in both classes) = .70 + .60 .50 = .80....
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 Spring '08
 BARROSO,JOAOR
 Statistics, Probability

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