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What is the age distribution of promotion-sensitive shoppers? A supermarket super shopper is defined as a shopper for whom at least 70% of the items purchased were on sale or purchased with a coupon.

Answer :

Answer:

The distribution of probability is valid if sum of all the probabilities equals to 1.

Explanation:

Age Range    Midpoint     Percent of super shopper

18-28                23                7%

29-39               34                44%

40-50               45                24%

51-61                 56                14%

61 and over      67                 11%

∑p(x) = P (x1)

The distribution of the shoppers is valid as the sum of all the probabilities equals to 1.

∑p(x) : 0.7 + 0.44 + 0.24 + 0.14 + 0.11 = 1

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