Are customers more loyal in the East or in the West? The following table is based on information from a recent study. The columns represent length of customer 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 60 59 112 77 125 465 Midwest 31 60 68 120 63 154 496 South 53 115 93 158 106 193 718 West 41 66 67 78 45 68 365 Column Total 157 301 287 468 291 540 2044 What is the probability that a customer chosen at random has the following characteristics? (Enter your answers as fractions.) (a) has been loyal 10 to 14 years (b) has been loyal 10 to 14 years, given that he or she is from the East (c) has been loyal at least 10 years
Are customers more loyal in the East or in the West? The following table is based on information from a recent study. The columns represent length of customer 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 60 59 112 77 125 465 Midwest 31 60 68 120 63 154 496 South 53 115 93 158 106 193 718 West 41 66 67 78 45 68 365 Column Total 157 301 287 468 291 540 2044 What is the probability that a customer chosen at random has the following characteristics? (Enter your answers as fractions.) (a) has been loyal 10 to 14 years (b) has been loyal 10 to 14 years, given that he or she is from the East (c) has been loyal at least 10 years
MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Are customers more loyal in the East or in the West? The following table is based on information from a recent study. The columns represent length of customer 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 | 60 | 59 | 112 | 77 | 125 | 465 |
Midwest | 31 | 60 | 68 | 120 | 63 | 154 | 496 |
South | 53 | 115 | 93 | 158 | 106 | 193 | 718 |
West | 41 | 66 | 67 | 78 | 45 | 68 | 365 |
Column Total | 157 | 301 | 287 | 468 | 291 | 540 | 2044 |
What is the
(a) has been loyal 10 to 14 years
(b) has been loyal 10 to 14 years, given that he or she is from the East
(c) has been loyal at least 10 years
(d) has been loyal at least 10 years, given that he or she is from the West
(e) is from the West, given that he or she has been loyal less than 1 year
(f) is from the South, given that he or she has been loyal less than 1 year
(g) has been loyal 1 or more years, given that he or she is from the East
(h) has been loyal 1 or more years, given that he or she is from the West
(i) Are theevents from the East and loyal 15 or more years independent? Explain.
(b) has been loyal 10 to 14 years, given that he or she is from the East
(c) has been loyal at least 10 years
(d) has been loyal at least 10 years, given that he or she is from the West
(e) is from the West, given that he or she has been loyal less than 1 year
(f) is from the South, given that he or she has been loyal less than 1 year
(g) has been loyal 1 or more years, given that he or she is from the East
(h) has been loyal 1 or more years, given that he or she is from the West
(i) Are the
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