CAIE IGCSE Mathematics Core C8.2 Relative and Expected Frequencies Topic Practice

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Covered syllabus points

C8.2.1 Understand relative frequency as an estimate of probability.C8.2.2 Calculate expected frequencies

Question 1

[Maximum number: 1]

Kim has a 6-sided spinner numbered 1 to 6 .
She spins it 63 times and her scores are shown in the table.

Table for Question 1 — CAIE IGCSE Mathematics Core

Find the relative frequency of scoring a 5 with this spinner.

Question 2

[Maximum number: 2]

Heidi records the colour of each of 500 cars crossing a bridge. The pie chart shows some of this information.

Figure for Question 2 — CAIE IGCSE Mathematics Core

Another 320 cars cross the bridge.

How many of these 320 cars are expected to be white?

Question 3

[Maximum number: 3]
Table for Question 3 — CAIE IGCSE Mathematics Core

The table shows the relative frequency of the games won by a football team.
The number of games lost is twice the number of games drawn.
Complete the table.

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