30. Modelling jumps 2012 Here are the summary statistics for the Olympic long jumps and high jumps displayed in the previous exercise: Event Mean StdDev High Jump 2.148077 0.1938663 Long Jump 8.050000 0.5135913 Correlation = 0.91246

a) Write the equation of the line of regression for estimating High Jump from Long Jump.

b) Interpret the slope of the line.

c) In a year when the long jump is 8.9 m, what high jump would you predict?

d) Why can’t you use this line to estimate the Long Jump for a year when you know the High Jump was 2.25 m?

e) Write the equation of the line you need to make that prediction.