a. What is the probability that a customer chosen at random is from the West given that he or she has been loyal 1 to 2 years? Round your answer to the nearest thousandth. b. What is the probability that a customer chosen at random has been loyal 5 or more years given that he or she is from the Midwest? Round your answer to the nearest thousandth.
a. What is the probability that a customer chosen at random is from the West given that he or she has been loyal 1 to 2 years? Round your answer to the nearest thousandth. b. What is the probability that a customer chosen at random has been loyal 5 or more years given that he or she is from the Midwest? Round your answer to the nearest thousandth.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.2: Representing Data
Problem 22PFA
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The following table is based on information from Trends in the United States, published by The Food Marketing Institute, Washington, D.C. The columns represent loyalty (in years) at a primary supermarket. The rows represent regions of the United States.
|
Less Than 1 Year |
1 – 2 Years |
3 – 4 Years |
5 – 9 Years |
10 – 14 Years |
15 or More Years |
Row Total |
East |
32 |
54 |
59 |
112 |
77 |
118 |
452 |
Midwest |
31 |
68 |
68 |
120 |
63 |
173 |
523 |
South |
53 |
92 |
93 |
158 |
106 |
158 |
660 |
West |
41 |
56 |
67 |
78 |
45 |
86 |
373 |
Column Total |
157 |
270 |
287 |
468 |
291 |
535 |
2008 |
a. What is the probability that a customer chosen at random is from the West given that he or she has been loyal 1 to 2 years? Round your answer to the nearest thousandth.
b. What is the probability that a customer chosen at random has been loyal 5 or more years given that he or she is from the Midwest? Round your answer to the nearest thousandth.
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