The box plots below show the average gas mileage, in miles per gallon, of the cars sold at a dealership in June and in December.

Gas Mileage of Cars Sold in June
2 box plots. The number line goes from 14 to 34. For cars sold in June, the whiskers range from 21 to 33, and the box ranges from 22 to 29. A line divides the box at 24. For Cars sold in December, the whiskers range from 14 to 26, and the box ranges from 18 to 21. A line divides the box at 19.
Gas Mileage of Cars Sold in December

The manager used the table below to compare the measures of center and the measures of variability.

Median
Range
Interquartile Range
Sold in June
24
33 minus 21 = 12
29 minus 22 = 7
Sold in December
19
26 minus 14 = 12
21 minus 16 = 5

What error did the manager make in the table?

A boxplot is a type of chart that can be used for the graphical representation of a data while showing the five-number summary of a data set with respect to locality, skewness, and spread.

Thus, the five-number summary in a boxplot include the following:

Minimum

First quartile

Median

Third quartile

Maximum

Based on the data provided in the table, we can infer and logically deduce that the error which the manager made in the table is that, the interquartile range for December should be 21 - 18 = 3 i.e 21 minus 18 equals to 3.

Read more on boxplots here: https://brainly.com/question/14277132

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