One hundred students were asked which fast food restaurants they had visited in the past month. The results are as follows: 47 ate at McDonald’s; 46 ate at Taco Bell; 44 ate at Wendy’s; 17 ate at McDonald’s and Taco Bell; 19 ate at Taco Bell and Wendy’s; 22 ate at Wendy’s and McDonald’s; 13 ate at all three. Determine how many ate only at McDonald’s.

One hundred students were asked which fast food restaurants they had visited in the past month. The results are as follows: 47 ate at McDonald’s; 46 ate at Taco Bell; 44 ate at Wendy’s; 17 ate at McDonald’s and Taco Bell; 19 ate at Taco Bell and Wendy’s; 22 ate at Wendy’s and McDonald’s; 13 ate at all three. Determine how many ate only at McDonald’s.

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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Concept explainers

Bar Graphs

A bar graph is a chart or graphical representation of data. A bar chart, also known as a bar graph, is a graph or chart that displays categorical data using rectangular bars with heights or lengths equal to the values they represent. Typically, bar graphs show categorical and numerical variables grouped in class intervals. A bar graph is useful for comparing and analyzing a set of data.

Question

One hundred students were asked which fast food restaurants they had visited in the
past month. The results are as follows:
47 ate at McDonald’s;
46 ate at Taco Bell;
44 ate at Wendy’s;
17 ate at McDonald’s and Taco Bell;
19 ate at Taco Bell and Wendy’s;
22 ate at Wendy’s and McDonald’s;
13 ate at all three.
Determine how many ate only at McDonald’s.

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