SOLUTION: A high school baseball player has a 0.307 batting average. In one game, he gets 5 at bats. What is the probability he will get at least 3 hits in the game?

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Question 1193948: A high school baseball player has a 0.307 batting average. In one game, he gets 5 at bats. What is the probability he will get at least 3 hits in the game?
Answer by ikleyn(52814) About Me  (Show Source):
You can put this solution on YOUR website!
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A high school baseball player has a 0.307 batting average. In one game, he gets 5 at bats.
What is the probability he will get at least 3 hits in the game?
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            It is a standard binomial distribution problem.


The number of trials is n=5;  the indexes of successful trials are k=3, 4, 5; 
the probability of success for each single individual trial is p = 0.307).


     The formula to calculate the probability is


         P = P(3) + P(4) + P(5) = P(n=5; k>=3; p=0.307) = sum%28C%5B5%5D%5Ek%2A0.307%5Ek%2A%281-0.307%29%5E%285-k%29%2Ck=3%2C5%29 = sum%28C%5B5%5D%5Ek%2A0.307%5Ek%2A0.693%5E%285-k%29%2C+k=3%2C5%29.


     To facilitate my calculations, I used online calculator at this site  https://stattrek.com/online-calculator/binomial.aspx

     It provides nice instructions  and  a convenient input and output for all relevant options/cases.


          The resulting number is P = 0.17246357389 = 0.1725  (rounded).    ANSWER

Solved.

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If you want to see many similar  (or different)  solved problems,  look into the lessons
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    - Solving problems on Binomial distribution with Technology (using MS Excel)
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in this site.

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