Basic Tools - Jamb Economics Past Questions and Answers

Question 31:

• JAMB 2007

The table shows the wage distribution of workers.Calculate the mean wage

A. N7.40
B. N4.00
C. N10.00
D. N14.80

Question 32:

• JAMB 2007

What is the median wage?

A. N8.00
B. N 5.00
C. N11.00
D. N6.50

Question 33:

• JAMB 2008

If the standard deviation of a given data is 8.2, find its variance

A. 4.1
B. 67.2
C. 82.0
D. 91.8

Question 34:

• JAMB 2008

Use the data below to answer this questions
54, 36, 62, 79, 83, 36, 62, 42, 62, and 42.
Calculate the mean?

A. 45.5
B. 55.6
C. 55.8
D. 65.8

Question 35:

• JAMB 2008

Use the data below to answer this questions
54, 36, 62, 79, 83, 36, 62, 42, 62, and 42.
What is the modal score?

A. 36
B. 42
C. 54
D. 62