Elias likes to read during his summer breaks. the table below shows the number of pages in each book he read last summer and the number of pages in each book he read this summer. number of pages elias read during the summer last summer: 140 220 190 180 190 this summer: 150 170 150 190 180 which statement comparing the modes to the ranges is true? a. the modes differ by 40 and the ranges differ by 40. b. the modes differ by 20 and the ranges differ by 20. c. the modes differ by 40, but the ranges differ by 20. d. the modes differ by 20, but the ranges differ by 40.

A.The modes differ by 40 and the ranges differ by 40.

Step-by-step explanation:

The mode of a data set is the value that occurs most often.

For the data from last summer, the value 190 is in the list twice, while all other values are only in once.  This means 190 is the mode.

For the data from this summer, the value 150 is in the list twice, while all other values are only in once.  This means 150 is the mode.  This also means the difference in modes is 190-150 = 40.

The range is the difference between the maximum and minimum values in a data set.  For last summer's data, the maximum is 220 and the minimum is 140; this gives us 220-140 = 80 for the range.

For this summer's data, the maximum is 190 and the minimum is 150; this gives us 190-150 = 40 for the range.  This means the difference in ranges is 80-40 = 40.

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