Mathematics, 11.12.2019 19:31, shealene7
Three musicians pick seven pieces of music out of 22 pieces independently of each other. they play one piece of music together only if the piece is chosen by all three of them. let x be the random variable which denote the number of pieces of music played. determine the expected value and the variance of x and compute p{x\geqslant1}. hint: to do this let xi to be 1 if the three musicians picks the ith music piece and 0 otherwise. express x in terms of xi. are the xi's independent?
Answers: 3
Mathematics, 21.06.2019 20:00, offensiveneedle
1: 4 if the wew 35 surfboards at the beach how many were short boards?
Answers: 1
Mathematics, 21.06.2019 21:00, Liantic8738
Oliver read for 450 minutes this month his goal was to read for 10% more minutes next month if all of her medicine go how many minutes will you read all during the next two months
Answers: 3
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