Posted by **Sally** on Thursday, November 10, 2011 at 3:12pm.

In her art class, Ms. Walter has 12 students whose ages are listed below:

19, 20, 20, 20, 21, 22, 24, 24, 25, 25, 56, 60

She calculated the mean and the median of their ages. What is the relationship between these two values?

- math -
**Ms. Sue**, Thursday, November 10, 2011 at 3:16pm
What mean and median did you find?

- math -
**Sally**, Thursday, November 10, 2011 at 3:20pm
The mean is 28 and the median is 23???

- math -
**Ms. Sue**, Thursday, November 10, 2011 at 3:30pm
Why do you think the mean is higher than the median?

- math -
**Sally**, Thursday, November 10, 2011 at 3:33pm
336/12 = 28 right?

- math -
**Ms. Sue**, Thursday, November 10, 2011 at 3:36pm
Right.

Note that all but two students are between 19 and 25. The other students are much older. That skews the mean, but doesn't affect the median.

- math -
**Sally**, Thursday, November 10, 2011 at 3:42pm
The answer in the book says the mean is 8 years less than the median. Please explain.

- math -
**Ms. Sue**, Thursday, November 10, 2011 at 3:44pm
By your and my calculations, there is 5 years between the median and the mean.

- math -
**Sally**, Thursday, November 10, 2011 at 3:47pm
Thank you! I said the mean is 5 years more than the median.

## Answer this Question

## Related Questions

- math - in a mathematics class half of the students scored 91 on an achievement ...
- math - in a mathematics class, half of the students scored 91 on an achievement ...
- math - in a mathematics class, half of the students scored 91 on an achievement ...
- Math - The ages in years of the houses on Kelly's block are: 20,26,11,2,28,18,2,...
- Math for the middle school and elementary teacher - A prof. teaches 2 calc. ...
- Math - There are 20 students in Mark's homeroom class. Ten percent of the ...
- mean & mode ? - If you were a teacher, and these numbers represented your ...
- math help please - 2. A teacher asks her class of 22 students, “What is your age...
- math - Find the mean, median, and modes of the data. Which average best ...
- math pls check - find mean,median, mode, range: for folloiwng numbers: 5, -2, 27...

More Related Questions