# A certain town with a population of 100,000 has3

## Problem 13 Chapter 2

First Course in Probability | 8th Edition

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Problem 13

A certain town with a population of 100,000 has3 newspapers: I, II, and III. The proportions oftownspeople who read these papers are as follows:I: 10 percent I and II: 8 percent I and II andIII: 1 percentII: 30 percent I and III: 2 percentIII: 5 percent II and III: 4 percent (The list tells us, for instance, that 8000 peopleread newspapers I and II.)(a) Find the number of people who read only onenewspaper.(b) How many people read at least twonewspapers?(c) If I and III are morning papers and II is anevening paper, how many people read at leastone morning paper plus an evening paper?(d) How many people do not read anynewspapers?(e) How many people read only one morningpaper and one evening paper?

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