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The following times were recorded by the quarter-mile and mile runners of a university track team (times are in minutes). Quarter-Mile Times: 0.92 0.96 1.01

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The following times were recorded by the quarter-mile and mile runners of a university track team (times are in minutes). Quarter-Mile Times: 0.92 0.96 1.01 0.94 1.00 Mile Times: 4.52 4.36 4.60 4.70 4.50 After viewing this sample of running times, one of the coaches commented that the quarter-milers turned in the more consistent times. Use the standard deviation and the coefficient of variation to summarize the variability in the data. Quarter-milers Standard deviation (to 4 decimals) Coefficient of variation (to 1 decimal) % Milers Standard deviation (to 4 decimals) Coefficient of variation (to 1 decimal) % Does the use of the coefficient of variation indicate that the coach's statement should be qualified? (i) Yes; the coefficient shows that as a percentage of the mean, the quarter-milers' times show less variability. (ii) No; the coefficient shows that as a percentage of the mean, the quarter-milers' times show more variability. Choose the correct answer. - Select your answer - v

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