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 Basic Statistics 2 (Posted on 2007-04-20)
A set of numbers {10, 21, 17, 12, x} has the property that the mean is equal to the median.

What could the value of x be?

 See The Solution Submitted by Brian Smith Rating: 3.0000 (1 votes)

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 re: Solution | Comment 3 of 7 |
(In reply to Solution by Jyqm)

If x = -10, the numbers are -10, 10, 12, 17, 21, and the median is still 12 while the mean is 10.

The median also cannot be 21, as when x = 45, the mean will be 21, but the median will still be 17: 10,12,17,21,45.

 Posted by Charlie on 2007-04-20 11:20:40
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