Question

3. 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 1 - 2 3 - 4 5 - 9 10 - 14 15 or Row Than 1 Years Years Years Years More Total Year 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 157 270 287 468 291 535 2008 Total 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.

          3. 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
1 - 2
3 - 4
5 - 9
10 - 14
15 or
Row
Than 1
Years
Years
Years
Years
More
Total
Year
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
157
270
287
468
291
535
2008
Total
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.

Added by Carrie S.

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