Measures of Location - Jamb Mathematics Past Questions and Answers

Question 56:

• JAMB 1992

\(\begin{array}{c|c} \text{No. of children} & 0 & 1 & 2 & 3 & 4 & 5 & 6 \\ \hline \text{No. of families} & 7 & 11 & 6 & 7 & 7 & 5 & 3 \end{array}\)
Find the mode and median respectively of the distribution above

A. 2, 1
B. 1, 2
C. 1, 5
D. 5, 2

Question 57:

• JAMB 1993

\(\begin{array}{c|c} Weight(s) & 0 -10 & 10 - 20 & 20 - 30 & 40 - 50\\ \hline \text{Number of coconuts} & 10 & 27 & 19 & 6 & 2\end{array}\)
Estimate the mode of the frequency distribution above

A. 13.2g
B. 15.0g
C. 16.8g
D. 17.5g

Question 58:

• JAMB 1993

The mean of the ages of ten secondary school pupils is 16 but when the age of their teacher is added to it the men becomes 19. Find the age of the teacher

A. 27
B. 35
C. 38
D. 49

Question 59:

• 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

Question 60:

• JAMB 1994

The mean of twelve positive numbers is 3. When another number is added, the mean becomes 5. Find the thirteenth number

A. 29
B. 26
C. 25
D. 24