ANSWER
[tex]\begin{gathered} (A)\pounds385 \\ (B)\pounds226 \end{gathered}[/tex]
EXPLANATION
(A) The range of a set of numbers is the difference between the largest number and the smallest number.
Therefore, the range of the wages is:
[tex]\begin{gathered} \pounds525-\pounds140 \\ \pounds385 \end{gathered}[/tex]
(B) The mean wage can be found by summing all the wages and dividing by the total number of wages given.
Therefore, the mean wage is:
[tex]\begin{gathered} Mean=\frac{\pounds(245+140+525+163+195+174+140)}{7} \\ Mean=\frac{\pounds1582}{7} \\ Mean=\pounds226 \end{gathered}[/tex]
