I really need help with this because I hardly understand it

see below

Step-by-step explanation:

The median is the middle point and it is found by the middle line of the box

median = 2.1

lowest data point is found by the left most dot

lowest point = 1.9

highest data point is the right most dot

highest point = 2.4

lower quartile median is the middle of the lower half = left line of the box

lower quartile = 2.0

upper quartile median is the middle of the upper half = right line of the box

upper quartile = 2.3

The interquartile range is the difference between the upper quartile and the lower quartile

2.3 - 2.0 = .3

where's the diagrams?

tube or goog would be a great resource to with that question