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Worksheet: Plotting and Using Cumulative Frequency Graphs

Q1:

The table shows the marks of 60 students in a mathematics exam. By drawing a cumulative frequency curve, estimate the median mark achieved.

Mark 2– 6– 10– 14– 18– 22– 26– Total
Frequency 11 10 13 7 6 5 8 60
  • A34
  • B21
  • C6.5
  • D12.8
  • E6.8

Q2:

The table shows the marks of 60 students in a mathematics exam. By drawing a cumulative frequency curve, estimate the median mark achieved.

Mark 2– 6– 10– 14– 18– 22– 26– Total
Frequency 10 7 5 9 11 12 6 60
  • A31
  • B22
  • C10
  • D17.6
  • E9.5

Q3:

The table shows the marks of 60 students in a mathematics exam. By drawing a cumulative frequency curve, estimate the median mark achieved.

Mark 2– 6– 10– 14– 18– 22– 26– Total
Frequency 11 7 4 8 12 4 14 60
  • A30
  • B22
  • C10
  • D18
  • E9

Q4:

The table shows the marks of 60 students in a mathematics exam. By drawing a cumulative frequency curve, estimate the median mark achieved.

Mark 2– 6– 10– 14– 18– 22– 26– Total
Frequency 12 10 9 10 6 11 2 60
  • A31
  • B22
  • C8
  • D13.6
  • E9