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In a study between two variables: A and B, the scatter diagram is football-shaped with: ave of A = 10, SD = 2 ave of B = 35, SD = 5 r = -0.5 The investigators decide to predict the A values from the B values by using the regression line of A on B. The percentage of points for which the prediction will be off by more than 2 points is closest to: 25% 95% 5% 68% 75%

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Carlos Rodriguez <carlos@math.albany.edu>

This problem was contributed by a student. It is offered as it is with no warranty of any kind
Last modified:Mon Mar 15 12:44:12 GMT-0500 (EST) 1999