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4MA1/1FR Jan 2023, Question 2: Basic Probability

Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 1FR (Foundation) · Calculator · 3 marks

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The question, in short

From six counters numbered 1, 2, 2, 3, 3, 3, one is picked at random; choose the word describing the likelihood of each stated outcome.

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

Part (ai) · 1 mark

Choose the word best describing the chance of picking a counter showing 2.

  1. 1There are 6 counters: 1, 2, 2, 3, 3, 3.
  2. 2Number of counters with a 2: 2.
  3. 3Probability = 2/6 = 1/3.
  4. 41/3 is less than 0.5, so the event is unlikely.

Answerunlikely

Part (aii) · 1 mark

Choose the word best describing the chance of picking a counter showing 3.

  1. 1Number of counters with a 3: 3.
  2. 2Probability = 3/6 = 1/2.
  3. 31/2 means an even chance.

Answerevens

Part (aiii) · 1 mark

Choose the word best describing the chance of picking a counter with a number above 4.

  1. 1Counters show numbers: 1, 2, 2, 3, 3, 3.
  2. 2No counter has a number greater than 4.
  3. 3So, it is impossible to take such a counter.

Answerimpossible

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