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Alice and Bob are taking turns to shoot at a target. Assume that they are each equally like to take the first shot. Alice has a hit rate 3/4 and Bob has a hit rate of 4/5. Then, what is the expected value of the number of hits (Alice and Bob combined) after a total of 5 shots

User Vijay Bhandari
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1 Answer

23 votes
23 votes

Answer:

7

Explanation:

15/20 times 5 is 75/20, simplified that is 3 15/20

16/20 times 5 is 80/20, simplified that is 4

User Thomas Hofmann
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