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A company surveyed 1000 people on their age and the number of jeans purchased annually. The...

A company surveyed 1000 people on their age and the number of jeans purchased annually. The results of the poll are shown in the table.

Jeans Purchased Annually
0 1 2 3 or More Total
Under 12 0     64     79         57   200
12-18 10     69     76         65   220
19-25 21     69     114         56   260
over 25 31     65     204         20   320
Total 62     267     473         198   1000

A person is selected at random. Compute the probability of the following.

(a) The person is over 25 and purchases 3 or more pairs of jeans annually.


(b) The person is in the age group 12-18 and purchases at most 2 pairs of jeans annually.


(c) The person is in the age group 19-25 or purchases no jeans annually.


(d) The person is older than 18 or purchases exactly 1 pair of jeans annually.

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Expert Solution

milcah answered 1 year ago
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