Question

Which movie had a greater range of ages of the audience? (Hint: The range is the difference between the max and min values)

Movie A

Movie B

Both about the same

Answer 1

Answer: Movie B

Range = max - min

Visually the min and max are the leftmost and right most points on the whiskers. This is assuming we don't have outliers in either direction. The range represents the total width of the box and whisker plot. For movie B, it is wider, so therefore it has a larger range of ages.

We could compute the ranges numerically and compare to see which is bigger, or we could align one endpoint (say the right endpoints) to see that movie B has a wider range.