4. Enter the data into a calculator list to find sample standard deviation s.

6. Multiply each score by the percent weighting of that assignment.

8. The five-number summary consists of the five numbers used to make the box-and-whisker plot: lowest, Q₁, Q₂, Q₃, highest.

11. This is like #6, except you have to divide the total by the sum of the weights (which was 100% in #6).