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Question 15 It is estimated that 45% of households own a riding lawn mower. A sample of 12 households is studied. What is the
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Answer #1

Since n= 12

Probability of sucess = 0.45

Mean = np = 12×0.45 = 5.4

Variance = np(1-p) = 12×0.45×(1-0.45)

= 2.97

So answer is

Option(b)

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