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

being born in poverty would limit the people's chances, opportunities and benefits.

this happen because of several things, such as:

- poor people tend to gain less access to good education and nutrition. this mean that their chance to obtain high paying jobs would also be limited.

- poor people tend to socialize with other poor people while the rich tend to socialize with other rich people. this means that simply throguh their social circle, rich people would have more business opportunities compared to the poor people.

- rich people tend to have more capital in their disposal. this would benefit them in business since it is far easier for them to fund their business operation compared to poor people.

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