Question
The Daytona is a -mile automobile race held annually at the Daytona International Speedway in Daytona Beach, Florida. The following crosstabulation shows the automobile make
The Daytona is a -mile automobile race held annually at the Daytona International Speedway in Daytona Beach, Florida. The following crosstabulation shows the automobile make by average speed of the winners from to (The World Almanac).
| Average Speed in Miles per Hour | ||||||
| Make | 130-139.9 | 140-149.9 | 150-159.9 | 160-169.9 | 170-179.9 | Total |
| Buick | 1 | 1 | ||||
| Chevrolet | 3 | 5 | 4 | 3 | 1 | 16 |
| Dodge | 2 | 2 | ||||
| Ford | 2 | 1 | 2 | 1 | 6 | |
| Total | 6 | 8 | 6 | 4 | 1 | 25 |
a. Compute the row percentages. If required, round your answers to two decimal places. If your answer is "zero" enter "0".
| Average Speed | ||||||
| Make | 130-139.9 | 140-149.9 | 150-159.9 | 160-169.9 | 170-179.9 | Total |
| Buick | ||||||
| Chevrolet | ||||||
| Dodge | ||||||
| Ford |
b. What percentage of winners driving a Chevrolet won with an average speed of at least miles per hour?
c. Compute the column percentages. If required, round your answers to two decimal places. If your answer is "zero" enter "0".
| Average Speed | |||||
| Make | 130-139.9 | 140-149.9 | 150-159.9 | 160-169.9 | 170-179.9 |
| Buick | |||||
| Chevrolet | |||||
| Dodge | |||||
| Ford | |||||
| Total |
d. What percentage of winning average speeds miles per hour were Chevrolets?
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Linear Algebra With Applications
Authors: Gareth Williams
8th Edition
1449679579, 9781449679576
