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Mathematics 16 Online
OpenStudy (anonymous):

If 5 apples in a barrel of 25 apples are rotten, what is the expected number of rotten apples in a sample of 2 apples? A. 0.4 B. 1 C. 0.63 D. 0.33

OpenStudy (anonymous):

Divide 25 by 2, then divide 5 by the answer to that and you'll get the answer(:

hartnn (hartnn):

can u find the probability of rotten apples ?

hartnn (hartnn):

it will be 5/25 so expected number is just multiplication of number of favorable events and probab.. so here its 2* 5/ 25 = ?

OpenStudy (anonymous):

Since the sample is 2 apples, divide 25 by 2 and you'll get 12.5. Then just divide 5 by 12.5 and you'll get the answer (:

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