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JAMB Mathematics 1993 Question 44

Question 44

Measures of Central Tendency

The following marks were obtained by twenty students in an examination.
53 30 70 84 59 43 90 20 78 48
44 60 81 73 50 37 67 68 64 52
Find the number of students who scored at least 50 marks.

  1. A.6
  2. B.10
  3. C.13
  4. D.14
Show the answer and explanation

Answer: D (14)

Explanation

"At least 50" includes 50. Counting 53, 70, 84, 59, 90, 78, 60, 81, 73, 50, 67, 68, 64 and 52 gives 14 students.