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 how many students brushed their teeth for less than 3.5 minutes?

Explanation:

Step1: Count the dots for each time less than 3.5

For 1.5 minutes: 2 dots
For 2 minutes: 3 dots
For 2.5 minutes: 1 dot

Step2: Sum up the counts

$2 + 3+1=6$

Answer:

6