From a small town, 120 people were randomly selected and asked the following question: Which of these three stores do you visit weekly (at least once per week), Store A, Store B, or Store C? The following results were obtained: 20 visit Store A and Store C, 10 visit Store A and Store B but not Store C, 15 visit all three stores, 30 only visit Store C, 35 visit Store B but not Store C, 25 visit Stores B and C, and 10 visit neither of the three stores. If a person is randomly selected from this group of 120, what is the probability that he or she (a) will visit Store B and Store C? (b) visits at least one of the three stores in the next week? (c) does not visit Store A or does not visit Store C? (d) only visits Store B? (e) only visits Store A?
From a small town, 120 people were randomly selected and asked the following question: Which of these three stores do you visit weekly (at least once per week), Store A, Store B, or Store C? The following results were obtained: 20 visit Store A and Store C, 10 visit Store A and Store B but not Store C, 15 visit all three stores, 30 only visit Store C, 35 visit Store B but not Store C, 25 visit Stores B and C, and 10 visit neither of the three stores. If a person is randomly selected from this group of 120, what is the probability that he or she (a) will visit Store B and Store C? (b) visits at least one of the three stores in the next week? (c) does not visit Store A or does not visit Store C? (d) only visits Store B? (e) only visits Store A?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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From a small town, 120 people were randomly selected and asked the following question: Which of these three stores do you visit weekly (at least once per week), Store A, Store B, or Store C? The following results were obtained: 20 visit Store A and Store C, 10 visit Store A and Store B but not Store C, 15 visit all three stores, 30 only visit Store C, 35 visit Store B but not Store C, 25 visit Stores B and C, and 10 visit neither of the three stores.
If a person is randomly selected from this group of 120, what is the
(a) will visit Store B and Store C?
(b) visits at least one of the three stores in the next week?
(c) does not visit Store A or does not visit Store C?
(d) only visits Store B?
(e) only visits Store A?
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