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4MA1/2F Jun 2023, Question 7: Basic Probability

Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 2F (Foundation) · Calculator · 3 marks

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The question, in short

A fair 6-section spinner has three yellow, two red and one green section. Mario spins once; choose the best likelihood word for each outcome.

Summarised in our own words. Use the official paper for the exact wording and the diagram.

Part (ai) · 1 mark

Choose the likelihood word that best describes the arrow landing on green.

  1. 1There are 6 sections: 3 yellow, 2 red, 1 green.
  2. 2Probability of landing on green = 1/6.
  3. 31/6 is less than 0.5, so it is unlikely.

Answerunlikely

Part (aii) · 1 mark

Choose the likelihood word that best describes the arrow landing on yellow.

  1. 1There are 3 yellow out of 6 sections.
  2. 2Probability of yellow = 3/6 = 1/2.
  3. 31/2 means evens.

Answerevens

Part (aiii) · 1 mark

Choose the likelihood word that best describes the arrow landing on blue.

  1. 1There is no blue section on the spinner.
  2. 2It cannot land on blue.
  3. 3So the event is impossible.

Answerimpossible

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