772-2011: median

Friday, June 1, 2012

The median is the middle value, so I'll have to rewrite the list in order:

13, 13, 13, 13, 14, 14, 16, 18, 21

There are nine numbers in the list, so the middle one will be the

(9 + 1) ÷ 2 = 10 ÷ 2 = 5

th number:

13, 13, 13, 13,

14,

14, 16, 18, 21

So the median is

mgabbeyJune 12, 2012 at 7:37 PM
Good job! I like how you explained your work, but next time, I suggest you make the font a bit bigger.
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