value, which is \(4\). Therefore the semi-interquartile range is \(\frac{1}{2}\times (4-1)=1.5\) (Sometimes you are asked for the interquartile range. If so, then you do not half the answer to \(Q ...

text{biggest number} - \text{smallest number} = 4.1 - 2.5 = 1.6\) The range of weights is 1.6 kg. The interquartile range shows the range in values of the central 50% of the data. To find the ...