Let’s examine this a little further by describing the interquartile range. Quartiles can be defined as dividing your data into 4 parts or quarters of approximately equal size. You can define the ...

To find these from the graph we draw two lines ... You are allowed to be out by a little but be as accurate as you can. So the interquartile range is the difference between the upper quartile ...

2.5 kg, 3.1 kg, 3.4 kg, 3.5 kg, 3.5 kg, 4 kg, 4.1 kg Find the interquartile range of the weights of the babies. To find the median value, or the value that is half way along the list, the method ...