Maths  IQR
posted by Sasha on .
Hi!
How do you work out the Inter Quartile range?
WHats the name for xbar and how do you work this out?
THanks

Interquartile 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.