Someone who enjoys working with numbers and words, facts, and data would have an interest in

Data are collected to see how many ice-cream cones are sold at a ballpark in a week. day 1 is sunday and day 7 is the following saturday. use the data from the table to create a scatter plot.

What is the average rate of change for this function for the interval from x=2 to x=4 ?

Can someone explain to me how to do