Do Generation X and Boomers differ in how they use credit cards? A sample of 1,000 Generation X and 1,000 Boomers revealed the following results:

If a respondent is selected at random, what is the probability that he or she

a. pays the full amount each month?

b. is a Generation X and pays the full amount each month?

c. is a Generation X or pays the full amount each month?

d. Explain the difference in the results of (b) and (c).

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GENERATION PAY FULL AMOUNT EACH MONTH Generation X Boomers Total 1,070 930 2,000 440 630 370 1,000 Yes No 560 1,000 Total