Question

the dotplot below shows ages for 46 math146 students in the spring 2016 quarter: how many students were 23 years old? how many students were 21 years old? how many students were 38 years old?

Explanation:

Step1: Locate 23 on dot - plot

Count the dots above 23.

Step2: Locate 21 on dot - plot

Count the dots above 21.

Step3: Locate 38 on dot - plot

Count the dots above 38.

Answer:

How many students were 23 years old? 3
How many students were 21 years old? 5
How many students were 38 years old? 0