Question

Consider the following data representing the price of refrigerators (in dollars).

12181218, 12531253, 11211121, 12821282, 12611261, 12631263, 13491349, 13901390, 13161316, 12271227, 11401140, 12451245, 11581158, 11681168, 11951195, 12251225, 11611161, 14051405, 13201320, 14051405, 11221122

Copy Data

Price of Refrigerators (in Dollars)

Class	Frequency	Class Boundaries	Midpoint	Relative Frequency	Cumulative Frequency
1108–11571108–1157
1158–12071158–1207
1208–12571208–1257
1258–13071258–1307
1308–13571308–1357
1358–14071358–1407

Step 1 of 7 :  

Determine the class width of the classes listed in the frequency table.

Answer 1

The class width is the difference between the upper or lower class limits of consecutive classes. All classes should have the same class width. In this case, class width equals to the difference between the lower limits of the first two classes.