The weekly wages (to the nearest ) of the production line workers in a small factory is shown in the table. a Write down the modal class. Weekly Number of wage workers,

f, 175-225 4 b Calculate an estimate of the mean wage. 226-300 8 c Use interpolation to find an estimate for the median wage. 301-350 18 351-400 28 401-500 7 AppendixLO1