Histograms are used to represent data using bars
The dataset is given as:
3, 6, 5, 9, 12, 14, 18, 4, 13, 12, 4, 3, 11, 14
Rearrange in ascending order
3, 3, 4, 4, 5, 6, 9, 11, 12, 12, 13, 14, 14, 18
Calculate the range
[tex]\mathbf{Range = 18 - 3}[/tex]
[tex]\mathbf{Range = 15}[/tex]
Using 4 classes, the class width is
[tex]\mathbf{Width = \frac{Range } 4}[/tex]
[tex]\mathbf{Width = \frac{15} 4}[/tex]
[tex]\mathbf{Width = 3.75}[/tex]
Approximate
[tex]\mathbf{Width = 4}[/tex]
So, we have the following frequency table
Class Frequency
3 - 7 6
7 - 11 1
11 - 15 6
15 - 19 1
See attachment for the histogram
Read more about histograms at:
https://brainly.com/question/14421716