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March 30, 2015

March 30, 2015

Posted by **Sasha** on Thursday, March 31, 2011 at 8:45am.

How do you work out the Inter Quartile range?

WHats the name for xbar and how do you work this out?

THanks

- Maths - IQR -
**PsyDAG**, Thursday, March 31, 2011 at 11:26amInterquartile range is the middle 50%, found by subtracting Q1 from Q3.

x bar is the sample mean. Add all the scores in the sample and divide by the number of scores.

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