SOLUTION: A high school baseball player has a 0.181 batting average. In one game, he gets 9 at bats. What is the probability he will get at least 7 hits in the game?

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Question 1149367: A high school baseball player has a 0.181 batting average. In one game, he gets 9 at bats. What is the probability he will get at least 7 hits in the game?
Answer by greenestamps(13209) About Me  (Show Source):
You can put this solution on YOUR website!


I will ignore the fact that a batter will never get 9 at bats in one game....

P(7 hits) = %289C7%29%2A%280.181%29%5E7%2A%281-0.181%29%5E2
P(8 hits) = %289C8%29%2A%280.181%29%5E8%2A%281-0.181%29%5E1
P(9 hits) = %289C9%29%2A%280.181%29%5E9%2A%281-0.181%29%5E0

Add the three probabilities....

Or use a graphing calculator that can perform all the calculations for you; or find an online calculator that will calculate these kinds of probabilities.