Interpreting a Line (Dot) Plot

What does each x represent?

How many people exercised 1/4 hour (15 minutes)?

How many people did not exercise?

How many people exercised for 1/2 hour (30 minutes) or more?

How many more people exercised 3/4 hour (45 minutes) than 1/2 hour (30 minutes)?

How many people exercised less than 1/2 hour (30 minutes)?

How much time did most people exercise? (What is the mode?)

What is the midpoint, or median of this data?

(If you rearranged the Xs in a straight line representing the people and their exercise time in sequential order from left to right, where would a line be drawn such that half the people were to the left of the line and half the people were to the right?)

A line (dot) plot is a type of frequency chart.

This line plot indicates that most people surveyed exercised more than 1/2 hour (30 minutes).