Dataset catsM contains a set of data on the heart weights and body weights of 97 male cats. We investigate the dependence of heart weight (g) on body weight (kg). The data set is available in the boot package. a. Investigate the data set by first fitting a straight- line regression and creating diagnostic plots.

number one is the correct answer

step-by-step explanation: dogs and cats are mentioned, no other animals

no association

step-by-step explanation:

if you have eyes and you can use them efficiently you can see that it just looks like random dots like do a line of best fit and like they're so spread out it's such a weak association you might as well consider it nonexistent