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Book Mean Median Mean Absolute Deviation Art 68.7 50 15.4 Science 54.2 55 7.9 She claims that because the mean number of words on each page in the art book is greater than the mean number of words on each page in the science book, the art book has more words per page. Based on the data, is this a valid inference? Yes, because the mean is larger in the art book No, because the mean is larger in the art book Yes, because there is a lot of variability in the art book data No, because there is a lot of variability in the art book data
Yes, because the mean is larger in the art book. Mean is the average in other words so greater average would infer greater quantity in whole
there is a lot of variability
Variability doesn't really matter because mean is the average. No matter how much the number varies if she knows the mean then mean is more accurate than variable.
yes it does
because the mean it affected by outliers
average is affected easily
example: the average of 5,5,5,100
here is one outlier,100 it affects the whole average
It does, but still within the sample.
ok so its either B or D right?
the answer would be D
ok thank you! :)
I am on your boat too
thank you @Robert136
No you were right in considering the median absolute deviation:)