Question

the students in a class collected data on the number of minutes some of them spend brushing their teeth every day. that data is shown in the dot - plot below.
brushing teeth
what was the most common amount of time someone spent brushing their teeth?

Explanation:

Step1: Identify mode concept

The most common value in a data - set is the mode. In a dot - plot, the mode is the value with the most number of dots.

Step2: Count dots for each value

For 1.5 minutes, there is 1 dot. For 2.5 minutes, there are 3 dots. For 3.5 minutes, there are 2 dots. For 4 minutes, there are 2 dots. For 4.5 minutes, there is 1 dot.

Answer:

2.5 minutes