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If a gambler rolls two dice nad gets a sum of 9, he wins $10 and...

If a gambler rolls two dice nad gets a sum of 9, he wins $10 and if he gets a sum of 4 he wins $20. The cost of the game is $5. What is the expectation of the game?

If 23% of all commuters ride to work in car pools, find the probability that if eight workers are selected, five will ride in car pools.

The probability that a person has a vcr, given that he or she has a color tv is .45. The probability that a person has a color tv is .90. What is the probability that a person has a vcr and a color tv?

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Answer #1

N0. total outcomes in Poool sum of 9) = two dice = 36 P( (316) (63) (314) (4, 5)] Prot (sum of 4) = P(613) ( 31) (2/2) ] so,

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