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Question

A game of chance consist of spinning an arrow, which comes to rest pointing at one of the numbers 1,2,3,4,5,6,7,8 and these are equally likely outcomes, Find the probability that the arrows will point at any factor of 8.


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Solution

Let's find the probability that the arrows will point at any factor of 8.

Number of events =1,2,3,4,5,6,7,8

Total numbers:

n(S)=8Factorof8=1,2,4and8Numberoffactorn(E)=4Therefore,probability=n(E)n(S)=48Probability=12

Hence, the required answer is 12.


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