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(Solved): 5. Past data indicate that probability that troubles in residential service can be repaired on the ...




5. Past data indicate that probability that troubles in residential service can be repaired on the same day is \( 0.7 \). For
5. Past data indicate that probability that troubles in residential service can be repaired on the same day is \( 0.7 \). For the 10 troubles reported on the same day what is the probability: a) at least 9 will be repaired on the same day? 8P b) at most 2 will be repaired on the same day? b) what are mean and standard deviation of this distribution?


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Data given P=0.7q=1?P=0.3n=10np=7 Probability of x P(X=x)=nCxPxqn?x Mean ?=np Standard deviation ?=npq
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