Statistics: Calculating the Mean

The video tutorial explains how to calculate the mean number of finishers in the New York Marathon over four decades. It breaks down the problem into manageable steps, including adding totals for each decade, calculating the overall total, and finding the mean. The tutorial concludes with rounding the mean to the nearest hundred, emphasizing the importance of showing the method for full marks.

What steps are necessary to show your method in solving the problem?

How many marks is the question worth, and why is it significant?

What were the two largest values used in the addition for the third and fourth decades?

What is the importance of showing your work in math problems like this?