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.

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

the correct answer would be b, when, queen, calder hall and london.

explanation:

we always capitalize words when a paragraph or sentence is starting, when an important name is used, when a place is being written, or simply when a noun is used, etc. so in this sentence, sentence is starting from 'when', so it will be written in capital letters. secondly, queen is considered to be an important person, so it will also be written in capital letter. next, the name of the town is mentioned, i-e calder hall, which will also be written in capital letters. in the last,   city name is being used, 'london', which will also be written in capital letters. so option b is the most appropriate one.

answer; bootstrapping is your answer;