Mathematics, 10.03.2021 06:00 GabbyLandry

PLEASE HELP PLEASE IM DESPERATE 6. Jean hasn't played tennis in awhile and wants to work on his first serve. His first serve
percentage is 64%.
a) Jean hits 10 first serves. Find the probability that he is successful on exactly 8 first
serves.
b) Jean hits 20 first serves. Find the probability that he is successful on 12 or less first
serves.
c) Jean hits 50 first serves. Find the probability that he is successful on more than 30 first
serves.
d) Jean hits 100 first serves. Find the mean and standard deviation of this practice session.

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