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4MA1/1F Nov 2021, Question 8: Reading Data and Drawing Fair Conclusions

Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 1F (Foundation) · Calculator · 6 marks

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The question, in short

Use the two-way table of biology and physics grades (A highest, D lowest) for Year 9 students to answer three counting questions about the students.

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

Part (a) · 2 marks

Find the total number of students whose biology grade is C.

  1. 1Grade C in biology is the C column of the table.
  2. 2Add the column: 2 + 4 + 6 + 5 = 17

Answer17

Part (b) · 2 marks

Count students whose biology grade equals their physics grade.

  1. 1Same grade means the diagonal: A-A, B-B, C-C, D-D.
  2. 28 + 5 + 6 + 0 = 19

Answer19

Part (c) · 2 marks

Count students whose biology grade is higher than their physics grade.

  1. 1Higher in biology: the biology column grade is better than the physics row grade.
  2. 2Physics B row: 3; physics C row: 4 + 2; physics D row: 0 + 0 + 5
  3. 33 + 4 + 2 + 5 = 14

Answer14

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