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: 1]

Flo has a bag of counters.
She picks a counter at random from the bag.
The probability that she picks a green counter is 0.52 .

Flo picks one counter from the bag at random, records the colour and replaces it in the bag. She does this 200 times.

Calculate the expected number of times she picks a green counter.

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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