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Mathematics - Please Answer Quickly

1.
(08.03)
Magdeline wants to know if the number of words on a page in her computer science 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 and then calculates the mean, median, and mean absolute deviation for the 25 samples of each book.

Book Mean Median Mean Absolute Deviation
Computer science 48.7 40 9.4
Math 34.2 45 1.9

She claims that because the mean number of words on each page in the computer science book is greater than the mean number of words on each page in the math book, the computer science book has more words per page. Based on the data, is this a valid inference? (10 points)

Yes, because there is a lot of variability in the computer science book data
Yes, because the mean is larger in the computer science book
No, because the mean is larger in the computer science book
No, because there is a lot of variability in the computer science book data
2.
(08.03)
Carlton is using the following data samples to make a claim about the house values in his neighborhood:

House Value
A $100,000
B $600,000
C $650,000
D $700,000
E $900,000

Based on the data, should Carlton use the mean or the median to make an inference about the house values in his neighborhood? (10 points)

He should use the median because there is an outlier that affects the mean.
He should use the mean because there are no outliers that affect the mean.
He should use the mean because it is in the center of the data.
He should use the median because it is in the center of the data.

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  1. BTW This is for Buzz Math for Connexus

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  2. Oof I failed.

    Q1- No, because there is a lot of variability in the computer science book data

    Q2- He should use the median because there is an outlier that affects the mean.

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