The standard errors

e

for this linear model for Olympic gold medal performances in the long jump from 1900 to 1988 is about0.2

.

In terms of estimating long jump distances, what does this mean?

(i) On the average, estimates will be up to0.2

meters too short.

(ii) On the average, estimates will be either be0.2

meters too short or too long.

(iii)20%

of the error in the estimates is explained by the regression line.

(iv)4%

of the error in the estimates is explained by the regression line.