Melissa wants to know if the number of words on a page in her geography book is generally more than the number of words on a page in her math book. She takes a random sample of 25 pages in each book, then calculates the mean, median, and mean absolute deviation for the 25 samples of each book.

Mean Median Mean Absolute Deviation

Geography 48.9 41 9.2

Math 34.5 44 1.9

She claims that because the mean number of words on each page in the geography book is greater than the mean number of words on each page in the math book, the geography book has more words per page. Based on the data, is this a valid inference?

Yes, because the mean is larger in the geography book

No, because the mean is larger in the geography book

No, because there is a lot of variability in the geography book data

Yes, because there is a lot of variability in the geography book data

Question

Reagan Sexton

28 September, 07:01

+5

Answers (2)

Know the Answer?

Rosa Mora · Answer 1

I know its c because it was right for me when i did the test

Nylah Noble · Answer 2

I think it would be c. I would have to have all of this information written out for me but i think it is C. Good Luck!