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Mathematics 91 Online
OpenStudy (anonymous):

For the data in the table, the mean score is 19 and the median score is 18. How are the mean and median affected when the outlier 1 is added to the data? Table titled Points Scored with data in the first and only row being 16, 17, 18, 23, 20, 18, 15, and 25. A. The mean and median are not affected. B. The mean decreases by 2, but the median stays the same. C. The median decreases by 2, but the mean stays the same. D. The mean and median both decrease by 2. My answer is B http://static.k12.com/calms_media/media/1417500_1418000/1417709/1/695e80742a5b2cf033

OpenStudy (igreen):

Correct! Mean without outlier: 19 Median without outlier: 18 Mean with outlier: 17 Median with outlier: 18

OpenStudy (anonymous):

@iGreen Thats exactly what I got LOL

OpenStudy (igreen):

:D

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