For the dot plot question (bivariate), when it asks you to find the average, do you use the rise/run method? and if so how do you do this.

e.g if the question said: State the relationship that exists between the age of cars and the distance travelled AND find the average change in distance travelled by a car each year as the age increases.

I can’t add the picture, but could you just use any numbers because I don’t know how to use the rise/run method

Thanks