JAMB and WAEC Mathematics questions: Statistics

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

All JAMB WAEC

Question 21· Statistics· WAEC
Find the median of 3, 8, 5, 12, 7, 10.
Explanation and discussion
Question 22· 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.
Explanation and discussion
Question 23· Statistics· JAMB
The mean of 10 numbers is 6. When one number, 15, is removed, what is the mean of the remaining numbers?
Explanation and discussion
Question 24· Statistics· WAEC
Find the median of 12, 5, 9, 15, 7 and 10.
Explanation and discussion
Question 25· Statistics· JAMB
The mean of 2, 4, x, 7 and 9 is 6. Find x.
Explanation and discussion
Question 26· Statistics· JAMB
Find the mean of the first five positive even numbers.
Explanation and discussion
Question 27· Statistics· JAMB
In a histogram, the frequency of each class is proportional to the
Explanation and discussion
Question 28· Statistics· WAEC
Find the mode of 4, 6, 6, 7, 7, 7, 8.
Explanation and discussion
Question 29· Statistics· WAEC
The mean of five numbers is 12. Four of the numbers are 10, 14, 9 and 15. Find the fifth number.
Explanation and discussion
Question 30· Statistics· JAMB
Find the median of this distribution: score 1, 2, 3, 4 with frequencies 3, 5, 4, 2.
Explanation and discussion
Question 31· Statistics· JAMB
The scores of five students are 6, 8, 8, 10 and 13. Find the mode and the range.
Explanation and discussion
Question 32· Statistics· JAMB
Which measure of central tendency is most affected by extreme values?
Explanation and discussion
Question 33· Statistics· WAEC
In a pie chart, a sector representing 15 out of 60 students has an angle of
Explanation and discussion
Question 34· Statistics· WAEC
Calculate the mean of 6, 11, 4, 9 and 15.
Explanation and discussion
Question 35· Statistics· WAEC
Find the mean of 4, 7, 9, 10, 15.
Explanation and discussion
Question 36· Statistics· JAMB
Find the mode of 2, 3, 3, 4, 4, 4, 5, 5.
Explanation and discussion
Question 37· Statistics· JAMB
Find the median of 7, 3, 9, 4, 8, 6.
Explanation and discussion
Question 38· Statistics· JAMB
Find the mean of 5, 8, 11 and 14.
Explanation and discussion
Question 39· Statistics· WAEC
The mode of 2, 3, 3, 5, 7, 7, 7, 9 is
Explanation and discussion
Question 40· Statistics· JAMB
39 students are arranged in order of height. The median height is the height of the
Explanation and discussion

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JAMB and WAEC Mathematics questions: Statistics

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

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

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

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

The mean of 2, 4, x, 7 and 9 is 6. Find x.

Find the mean of the first five positive even numbers.

In a histogram, the frequency of each class is proportional to the

Find the mode of 4, 6, 6, 7, 7, 7, 8.

The mean of five numbers is 12. Four of the numbers are 10, 14, 9 and 15. Find the fifth number.

Find the median of this distribution: score 1, 2, 3, 4 with frequencies 3, 5, 4, 2.

The scores of five students are 6, 8, 8, 10 and 13. Find the mode and the range.

Which measure of central tendency is most affected by extreme values?

In a pie chart, a sector representing 15 out of 60 students has an angle of

Calculate the mean of 6, 11, 4, 9 and 15.

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

Find the mode of 2, 3, 3, 4, 4, 4, 5, 5.

Find the median of 7, 3, 9, 4, 8, 6.

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

The mode of 2, 3, 3, 5, 7, 7, 7, 9 is

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