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WAEC Mathematics 2003 Question 4

Question 4

Measures of Central Tendency

The table below gives the distribution of marks obtained by a number of pupils in a class test.
Marks: 0, 1, 2, 3, 4, 5
Frequency: 4, 7, 12, 18, 11, 8
How many pupils scored at least 2 marks?

  1. A.12
  2. B.23
  3. C.37
  4. D.49
Show the answer and explanation

Answer: D (49)

Explanation

At least 2 means 2, 3, 4 or 5 marks: 12 + 18 + 11 + 8 = 49.