Question

find therange of the data set that is obtained after adding 4 to eat value 21 1525 3025 1816 2228 25

Answer 1

$\begin{gathered} \text{data are:} \\ 15,16,18,21,22,25,25,25,28,30 \\ \text{the range is given by the MAXIMum VALUE minus Minimum value, hence} \\ \text{range}=30-15=15 \\ \text{Now, } \end{gathered}$$\begin{gathered} \text{If you add 4 to each value, one has} \\ 19,20,22,25,26,29,29,29,32,34 \\ \text{hence,} \\ \text{range}=34-19=15 \end{gathered}$