Respuesta :
Answer:
at intervals of 10
Step-by-step explanation:
you can use the class interval as
10 - 20
20-30
30-40
40-50
50-60
60-70
The class intervals to use for the given data is 10
What is a class interval?
The class interval is the difference between the upper class limit and the lower class limit. Class interval represents the width of each class in a frequency distribution
What is a frequency?
The frequency of a class interval is the number of observations that occur in a particular predefined interval.
From the given data the prepare a table for age and frequency
Age frequency
0-10 4
11-20 5
21-30 2
31-40 5
41-50 0
51-60 2
61-70 1
To know more about frequency and class interval click here
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