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JAMB and WAEC Mathematics questions

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

AllJAMBWAEC
All topicsBinary operations · 35Coordinate geometry · 46Differentiation · 24Euclidean geometry · 51Fractions, decimals, approximations and percentages · 56Indices, logarithms and surds · 59Inequalities · 41Integration · 23Loci · 31Matrices and determinants · 25Mensuration · 53Number bases · 49Permutation and combination · 22Polynomials · 57Probability · 48Progressions · 48Sets · 46Statistics · 53Trigonometry · 52Variation · 42

  5. Question 725· Statistics· WAEC

    Find the range of 23, 41, 17, 35 and 29.

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    Answer: A. 24

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  6. Question 726· Statistics· WAEC

    In a pie chart showing 72 students, what angle represents a group of 18 students?

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    Answer: C. 90°

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  7. Question 727· Statistics· WAEC

    Calculate the variance of 1, 3, 5 and 7.

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    Answer: D. 5

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  8. Question 728· Statistics· WAEC

    Find the mode of the scores 2, 4, 4, 5, 6, 4, 7, 5.

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    Answer: D. 4

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  9. Question 729· Statistics· WAEC

    The scores 1, 2 and 3 occur with frequencies 2, 3 and 5 respectively. Find the mean score.

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    Answer: D. 2.3

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  11. Question 731· Statistics· JAMB

    In a test, 2 students scored 1, 3 students scored 2 and 5 students scored 3. Find the mean score.

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    Answer: D. 2.3

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  12. Question 732· Statistics· JAMB

    Find the mean deviation of 2, 4 and 6.

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    Answer: A. 4/3

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  13. Question 733· Statistics· JAMB

    Find the standard deviation of 2, 4, 6 and 8.

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    Answer: C. √5

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  14. Question 734· Statistics· JAMB

    Find the standard deviation of 3, 5 and 7, correct to 2 decimal places.

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    Answer: B. 1.63

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  15. Question 735· Statistics· WAEC

    Find the median of 3, 8, 5, 12, 7, 10.

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    Answer: C. 7.5

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  16. Question 736· Statistics· JAMB

    The mean of five numbers is 12. When one number is removed, the mean of the rest is 10. Find the number removed.

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    Answer: B. 20

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  17. Question 737· Statistics· JAMB

    The mean of 10 numbers is 6. When one number, 15, is removed, what is the mean of the remaining numbers?

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    Answer: D. 5

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  18. Question 738· Statistics· WAEC

    Find the median of 12, 5, 9, 15, 7 and 10.

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    Answer: D. 9.5

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  20. Question 740· Statistics· JAMB

    Find the mean of the first five positive even numbers.

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    Answer: A. 6

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