Khan/khan-exercises — Issue #9246: Exploring mean and median - Decimals
Author: KhanBugz
Created: 2011-12-21 23:51:43+00:00
State: open
Labels: ie8, ie9, other, win7

The question askes for a mean of 2.0999999999999999999999996. But i can get that on a number line. both 2.1 and 2.0 don't work either.

[exploring_mean_and_median.html?seed=187&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/exploring_mean_and_median.html?seed=187&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/exploring_mean_and_median.html?seed=187&problem=0&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5B-3%2C-1%2C7%2C0.5%2C7%5D%22%2C40%5D%2C%5B%22incorrect-activity%22%2C%22%5B-3%2C-1%2C6.5%2C0.5%2C7%5D%22%2C7%5D%2C%5B%22hint-activity%22%2C%220%22%2C1%5D%2C%5B%22hint-activity%22%2C%220%22%2C2%5D%2C%5B%22hint-activity%22%2C%220%22%2C3%5D%2C%5B%22hint-activity%22%2C%220%22%2C4%5D%2C%5B%22incorrect-activity%22%2C%22%5B-2.5%2C-1%2C6.5%2C0.5%2C7%5D%22%2C36%5D%5D)

[[-3,-1,7,0.5,7],[-3,-1,6.5,0.5,7],[-2.5,-1,6.5,0.5,7]]

Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Win64; x64; Trident/5.0; .NET CLR 2.0.50727; SLCC2; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; Tablet PC 2.0; .NET4.0E; .NET4.0C; Zune 4.7)

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