Khan/khan-exercises — Issue #11049: Creating box and whisker plots - 2nd and 3rd quartile calculated wrong
Author: KhanBugz
Created: 2012-01-12 17:51:53+00:00
State: open
Labels: ie8, ie9, vista, wrong-or-unclear

Reporter: philgeorge@reachone.com

There are 15 items, so:
median is the 8th item, okay;
2nd quart is AVERAGE of the 4th and 5th item, not okay - your answer is the 4th item;
3 quartile is AVERAGE of the 11th and 12th item, not okay - your answer is the 11th item.
This exercise was generating the correct answers, as stated above, before today.
What changed today??!!

[creating_box_and_whisker_plots.html?seed=108&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/creating_box_and_whisker_plots.html?seed=108&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/creating_box_and_whisker_plots.html?seed=108&problem=0&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5B3%2C4.5%2C6%2C7.5%2C10%5D%22%2C68%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%2C3%5D%2C%5B%22hint-activity%22%2C%220%22%2C4%5D%2C%5B%22hint-activity%22%2C%220%22%2C5%5D%2C%5B%22hint-activity%22%2C%220%22%2C5%5D%2C%5B%22hint-activity%22%2C%220%22%2C8%5D%5D)

[[3,4.5,6,7.5,10]]

Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/5.0; SLCC1; .NET CLR 2.0.50727; .NET CLR 1.1.4322; .NET CLR 1.0.3705; InfoPath.2; .NET CLR 3.5.30729; .NET4.0C; .NET CLR 3.0.30729; .NET4.0E)

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