The lower class and upper class limits are {9, 19, 29, 39, 49} and {10, 20, 30, 40, 50} respectively for the given class.
The class width of a given class is the ratio of the difference between maximum and minimum to the number of classes.
Given, minimum= 9 maximum= 66, and classes = 6.
Therefore, class width
= [tex]\frac{maximum - minimum}{classes}[/tex]
= [tex]\frac{66 - 9}{6}[/tex]
= [tex]\frac{57}{6}[/tex]
= 9.5
Therefore, class width is 9.5.
Now, the lower class limits = {9, 19, 29, 39, 49}
The upper class limits = {10, 20, 30, 40, 50}
Learn more about class width of a given class here: https://brainly.com/question/24701109
#SPJ2
