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Worksheet: Frequency Curve

Q1:

The line graph shows the ages of 120 people. Using the graph, complete the frequency table.

Age 5 10 15 20 25 Total
Frequency
  • A5, 25, 20, 30, 15, 95
  • B15, 35, 25, 35, 20, 130
  • C15, 35, 30, 40, 25, 145
  • D10, 30, 25, 35, 20, 120

Q2:

The line graph shows the marks that 40 students received in a mathematics test. Using information from the graph, complete the frequency table.

Mark 10–19 20–29 30–39 40–49 Total
Frequency 40
  • A7, 13, 12, 10
  • B5, 11, 12, 10
  • C7, 11, 12, 12
  • D7, 11, 12, 10

Q3:

The line graph shows the daily wages of employees at a company. Using the graph, complete the frequency table.

Wage (LE) 20– 30– 40– 50– 60– Total
Frequency 40
  • A4, 14, 5, 12, 5
  • B3, 5, 14, 12, 5
  • C4, 6, 14, 12, 5
  • D4, 5, 14, 12, 5

Q4:

The line graph shows the daily wages of employees at a company. Using the graph, complete the frequency table.

Wage (LE) 20– 30– 40– 50– 60– Total
Frequency 50
  • A7, 13, 11, 12, 7
  • B6, 11, 13, 12, 7
  • C7, 12, 13, 12, 7
  • D7, 11, 13, 12, 7

Q5:

The line graph shows the marks 120 students received in an exam. How many students received 20 marks or more?

  • A40
  • B50
  • C90
  • D80

Q6:

The line graph shows the marks a group of students received in a test. Using the graph, complete the frequency table.

Marks 0– 10– 20– 30– 40– 50– 60– Total
Frequency 60
  • A5, 7, 10, 11, 13, 8, 7
  • B4, 7, 10, 11, 13, 7, 8
  • C4, 10, 7, 11, 13, 8, 7
  • D4, 7, 10, 11, 13, 8, 7
  • E5, 8, 11, 12, 14, 9, 8

Q7:

The line graph shows the marks 120 students received in a mathematics test. How many students received less than 40 marks?