Edexcel IGCSE Math A 6.3.E sample space and events

Practise sample-space questions by listing possible outcomes, identifying the event and counting favourable outcomes systematically.

Exam points

List or use possible outcomes in a game before counting the event outcomes.
Calculate probabilities for scores greater than, less than or equal to a stated value.

[Maximum number: 2]

Ella has two fair spinners.
Spinner A is labelled 0,1 and 2
Spinner B is labelled 2, 3, 4 and 5

Spinner A

Spinner B

Ella is going to spin each spinner once.
Each spinner will land on a number.
Ella will get her score by multiplying these two numbers together.

Find the probability that Ella's score is less than 5

Working:
$\frac{8}{12}$

Final answer:
$\frac{8}{12}=\frac23$

M1ft for $\frac{8}{m}$ where m>8, $\frac{n}{12}$ where n<12, or 8:12 oe. A1ft oe, for example $\frac23$ , $0.66\ldots$ , or $66.66\ldots\%$ .

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6.3.E Sample spaces and events question 1