Question 761278
A survey finds customers overpay for 4 out of every 10 items. Suppose a Cheers,
Stan H.
customer purchases 15 items.
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Binomial Problem with n = 15 and p(overpay) = 0.4
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a) the probability the customer overpays on none of the items is 0.6^15 =
0.000470.. (round decimal to the nearest thousandth).
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b) The probability the customer overpays on at least 3 items is
P(3<= x <=15) = 1 - binomcdf(15,0.4,2) = 0.9729
 (round decimal to the nearest thousandth).
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Cheers,
Stan H.
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