Based on the scatterplot and residual plot, which type of model is most suitable for modeling electric bills based on mean monthly temperature?
Answer
A
A linear model is appropriate because the residual plot shows a random scatter.
B
An exponential model is appropriate because the scatterplot of log temperature and log bill is roughly linear.
C
A power model is appropriate because the scatterplot of log temperature and log bill is roughly linear, and the residual plot shows no distinct pattern.
D
A logarithmic model is appropriate because logarithms were used to transform the data sets.