While hanging Christmas lights for neighbors, Lacey counted the number of broken lights on each string.

Use the data to complete the frequency chart below.

Broken lights per string

31 69 73 29 55 58 45 41 32 75 32 90 58 49 89 77 49 47 74 42 59

Fill in the missing numbers.

Broken lights per string
Number of broken lights Number of strings
21-30
31-40
41-50
51-60
61-70
71-80
81-90