Median - Jamb Mathematics Past Questions and Answers

Question 11:

• JAMB 1983

The scores of set of final year students in the first semester examination in a paper are 41, 29, 55, 21, 47, 70, 70, 40, 43, 56, 73, 23, 50, 50. Find the median of the scores.

A. 47
B. 50
C. 48\(\frac{1}{2}\)
D. 48
E. 49

Question 12:

• JAMB 1983

In a sample survey of a University Community, the following table shows the percentage distribution of the number of members per house hold
\(\begin{array}{c|c} \text{No. of members per household} & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & \text{Total} \\ \hline \text{No. of households} & 3 & 12 & 15 & 28 & 21 & 10 & 7 & 4 & 100\end{array}\)
What is the median?

A. 4
B. 3
C. 5
D. 4.5
E. None

Question 13:

• JAMB 1986

Find the median of the numbers 89, 141, 130, 161, 120, 131, 131, 100, 108 and 119

A. 131
B. 125
C. 123
D. 120

Question 14:

• JAMB 1989

If n is the median and m is the mode of the following set of numbers, 2.4, 2.1, 1.6, 2.6, 2.6, 3.7, 2.1, 2.6, then (n, m) is

A. (2.6, 2.6)
B. (2.5, 2.6)
C. (2.6, 2.5)
D. (2.5, 2.1)

Question 15:

• JAMB 1993

\(\begin{array}{c|c} Class & Frequency\\ \hline 1 - 5 & 2\\6 - 10 & 4\\11 - 15 & 5\\16 - 20 & 2 \\ 21 - 25 & 3\\26 - 30 & 2\\31 - 35 & 1\\36 - 40 & 1 \end{array}\)
Find the median of the observation in the table given

A. 11.5
B. 12.5
C. 14.0
D. 14.5