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In a recent survey, consumers were asked where they did their online shopping. The following results were obtained: 730 shopped at Amazon, 480 shopped at Apple, 410 shopped at Walmart, 210 shopped at both Amazon and Apple, 250 shopped at both Amazon and Walmart, 140 shopped at both Apple and Walmart, 50 shopped at all three of these sites, and 30 shopped at none of these sites. а. How many consumers were surveyed? b. How many of these consumers shopped at exactly two of these sites? с. How many of these consumers shopped at Apple and Walmart, but not at Amazon?

In a recent survey, consumers were asked where they did their online shopping. The following results were obtained: 730 shopped at Amazon, 480 shopped at Apple, 410 shopped at Walmart, 210 shopped at both Amazon and Apple, 250 shopped at both Amazon and Walmart, 140 shopped at both Apple and Walmart, 50 shopped at all three of these sites, and 30 shopped at none of these sites. а. How many consumers were surveyed? b. How many of these consumers shopped at exactly two of these sites? с. How many of these consumers shopped at Apple and Walmart, but not at Amazon?

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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In a recent survey, consumers were asked where they did their online shopping. The following results were obtained: 730 shopped at Amazon, 480 shopped at Apple, 410 shopped at Walmart, 210 shopped at both Amazon and Apple, 250 shopped at both Amazon and Walmart, 140 shopped at both Apple and Walmart, 50 shopped at all three of these sites, and 30 shopped at none of these sites. а. How many consumers were surveyed? b. How many of these consumers shopped at exactly two of these sites? How many of these consumers shopped at Apple and Walmart, but not at Amazon? с.
Transcribed Image Text:In a recent survey, consumers were asked where they did their online shopping. The following results were obtained: 730 shopped at Amazon, 480 shopped at Apple, 410 shopped at Walmart, 210 shopped at both Amazon and Apple, 250 shopped at both Amazon and Walmart, 140 shopped at both Apple and Walmart, 50 shopped at all three of these sites, and 30 shopped at none of these sites. а. How many consumers were surveyed? b. How many of these consumers shopped at exactly two of these sites? How many of these consumers shopped at Apple and Walmart, but not at Amazon? с.
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