While hanging Christmas lights for neighbors, Brody counted the number of broken lights on each string.
Use the data in the first frequency chart to complete the second frequency chart.
Broken lights per string
Number of broken lights Number of strings
4-5
30
6-7
5
8-9
20
10
10-11
12-13
14-15
15
30
16-17
15
18-19
25
Fill in the missing numbers.
Broken lights per string
Number of broken lights Number of strings
4-7
8-11
12-15
16-19