Question

For a set of data, how is the IQR determined?

Answer 1

Interquartile range

Answer 2

minus the lower quartile from the upper quartile

Answer 3

An explanation and a worked example can be found here:
http://stattrek.com/statistics/dictionary.aspx?definition=interquartile_range

Answer 4

no

Answer 5

@kropot72
so, hows this for a answer?
a measure of variability, based on dividing a data set into quartiles.

Answer 6

or do i need more details you think

Answer 7

It is not possible for me to judge how much detail is needed and how much can be omitted. To be on the safe side, I would assume that an explanation is being given to someone who has no prior knowledge of quartiles.