Question

The interquartile range of a data set is 10 units. What does this represent?
A)
The median value of the data set must be 10 units.
B)
There are 10 units between the upper and lower quartiles.
C)
The middle 50% of the data in the set are less than 10 units.
D)
The upper and lower quartiles must be 10 units away from the median.