Frequency Polygons Example The table below represents the marks obtained by children in an examination. Mark 0 – 10 10 –20 20 –30 30 –40 40 –50 50 –60 60 –70 70 –80 80 –90 90 –100 Frequency 1 3 6 13 14 12 7 5 4 Represent this data on a frequency polygon

a) Draw a frequency polygon to represent the data Example The table below shows the distribution of weekly wages in two small factories a) Draw a frequency polygon to represent the data b) Comment on the results. Weekly wage (£) 40-50 50-60 60-70 70-80 80-90 90-100 100-110 110-120 120-130 130-140 Factory A 1 3 7 11 12 17 20 15 4 Factory B 5 10 16 9