JAMB Mathematics questions: Statistics

27 questions with answers and explanations. Tap an option to check yourself.

1. Question 21· Statistics· JAMB

   Find the mean of 5, 8, 11 and 14.

   • A9.5
   • B9
   • C10
   • D38

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   Explanation and discussion

2. Question 22· Statistics· JAMB

   39 students are arranged in order of height. The median height is the height of the

   • A19.5th student
   • B19th student
   • C20th student
   • D21st student

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3. Question 23· Statistics· JAMB

   Find the mean of 4, 7, 9, 10 and 15.

   • A9
   • B8
   • C10
   • D7

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   Explanation and discussion

4. Question 24· Statistics· JAMB

   Find the median of 12, 5, 9, 15, 7, 11.

   • A9
   • B10
   • C11
   • D12

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   Explanation and discussion

5. Question 25· Statistics· JAMB

   A student scores 60, 70 and 80 in three tests weighted 1, 2 and 2. Find the weighted mean score.

   • A70
   • B72
   • C75
   • D68

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6. Question 26· Statistics· JAMB

   In a pie chart of 120 students, 30 students walk to school. What angle represents those who walk?

   • A30°
   • B90°
   • C120°
   • D45°

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7. Question 27· Statistics· JAMB

   The mean of x, 2x, 3x and 6 is 9. Find x.

   • A5
   • B6
   • C4
   • D7

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   Explanation and discussion