Grade 12 · CAPS

Grade 12 Probability

Mathematical Literacy practice questions and a worked example

Grade 12 Mathematical Literacy probability questions from the NSC papers ask you to work out the chance of an event from a table, a graph or a map, and to write it as a fraction, decimal or percentage. Some ask you to check whether someone's claim about a probability is valid. Practise them alongside the data questions they come from.

Worked example

4.2.5 Bonolo stated that the probability of randomly selecting a girl wearing a dress with body size smaller than XXL is 0,833. Verify, with calculations, whether her statement is VALID.

Answer

P = 5/6 = 0,833. Her statement is VALID.

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Probability

Question 1 of 3

3.1.5 Determine the probability, as a fraction, of randomly selecting a female who is under 5 years old and not overweight or obese using the graph above.

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More practice questions

Explore additional Grade 12 Probability questions.

  • 2
    2.3.4 State the probability of having a traffic light at Brooklyn Circle.
  • 3
    4.2.4 Write, as a percentage, the probability of randomly selecting a girl who weighs 50 kg and wears an XS dress.
  • 4
    1.1.4 Use the information above to answer the questions that follow. The probability of randomly selecting a voter from School X is 0,56 during the 17:30–18:00 time slot. Write 0,56 as a simplified fraction.
  • 5
    3.1.4 Use ANNEXURE B and the information above to answer the questions that follow. Determine, as a percentage, the probability of randomly selecting a year where the number of Shoprite stores is fewer than 2 000.

Common mistakes

  • Using the wrong total as the denominator.
  • Giving the answer in a different form from the one asked for (fraction, decimal or percentage).
  • Not simplifying a fraction when the question asks for its simplest form.

More Grade 12 Mathematical Literacy topics

Probability in other grades

Aligned to CAPS Grade 12 Mathematical Literacy — Probability. Curriculum source: CAPS for the FET Phase, Department of Basic Education.

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