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Mathematics, 01.03.2021 02:00 QuestionsAnsweredNow

The probability is .35 that a traffic fatality involves an intoxicated or​ alcohol-impaired driver or nonoccupant. In 9 traffic​ fatalities, find the probability that the​ number, Y, which involve an intoxicated or​ alcohol-impaired driver or nonoccupant is a. exactly​ three; at least​ three; at most three.
b. between 2 and 4​, inclusive.
c. Find and interpret the mean of the random variable Y.
d. Obtain the standard deviation of Y.

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