Question

A basketball player makes 40% of his shots from the free throw line. Suppose that each of his shots can be considered independent and that he takes 3 shots. Let X = the number of shots that he makes. What is the standard deviation for X? 0.849 0.72 1.2 0.4

Answer 1

Here given that n=3, p=0.40, q=0.60

So... standard deviation will be

S.D= √npq

=√(3×0.40.×0.60)

​​​​​​ =0.849

option A is correct

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