A punter for a football team is trying to determine the optimal angle for striking the football off his foot—this is called the launch angle. Using video, his coach records a number of punts kicked using different launch angles and the height in feet for each punt. Using computer software, the coach achieves a linear model by taking the log of each launch angle and plotting against the log of each height.
Answer
A
A linear model is appropriate because the residual plot shows a random scatter.
B
A logarithmic model is appropriate because logarithms were used to transform the data sets.
C
A power model is appropriate because the scatterplot of log angle and log height is roughly linear.
D
An exponential model is appropriate because the scatterplot of log angle and log height is roughly linear.