describe the interval you would use for a bar graph if the data rangers from 12 to 39 units.

2 answers

39 - 12 = 27

How many bars do you want to use? Typically, you can use 5-10 bars. How many would you like to use to cover the range of 27? Divide that number into 27 to get the size of the interval.
Abcdefghijklmnopqrstuvwxyx