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Cumulative Frequency

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Question 2

The frequency table shows the weight, in kg, of some cats.

Weight (kg)Frequency
0<w≤10 < w \leq 10<w≤18
1<w≤21 < w \leq 21<w≤210
2<w≤32 < w \leq 32<w≤321
3<w≤43 < w \leq 43<w≤419
4<w≤54 < w \leq 54<w≤513
5<w≤65 < w \leq 65<w≤69
a.

Complete the cumulative frequency table

Weight (kg)Cumulative Frequency
0<w≤10 < w \leq 10<w≤1
0<w≤20 < w \leq 20<w≤2
0<w≤30 < w \leq 30<w≤3
0<w≤40 < w \leq 40<w≤4
0<w≤50 < w \leq 50<w≤5
0<w≤60 < w \leq 60<w≤6
[1]
b.

On the grid opposite draw a cumulative frequency graph for this information.

A blank cumulative frequency graph grid.

[2]
c.

Use your cumulative frequency graph to find an estimate for the interquartile range.

[2]

Cumulative Frequency Questions

  1. IGCSE
  2. /Maths
  3. /Cumulative Frequency

Practise Oxford AQA IGCSE Maths Cumulative Frequency with exam-style questions for Core and Extended tier. 4 questions, matched to the Oxford AQA IGCSE Maths (9260) specification and written in Paper 1 and Paper 2 (Core: 1C and 2C; Extension: 1E and 2E) style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

Question bank