STATISTICS - Jamb Mathematics Past Questions and Answers

Question 51:

• JAMB 2016

OGIVE is constructed using

A. Third quartile range
B. Semi-quartile range
C. Cummulative frequency table
D. Inter-quartile table

Question 52:

• JAMB 2016

The bar chart above shows the marks obtained by students in a mathematics test.

How many students in all took the test?

A. 40
B. 30
C. 10
D. 20

Question 53:

• JAMB 2016

Determine the mean score of the student that took the mathematics test?

A. 4.5
B. 4.3
C. 4.2
D. 4.6

Question 54:

• JAMB 2015

One bag contain 3 blue and 5 red balls, another bag contain 2 blue and 4 red balls respectively. One ball is drawn for each bag. What is the probability both balls are blue

A. \( \frac{2}{15} \)
B. \( \frac{3}{24} \)
C. \( \frac{3}{21} \)
D. \( \frac{3}{28} \)

Question 55:

• JAMB 2015

The probability of an event A is 1/5. The probability of B is 1/3 . The probability both A and B is 1/15. What is the probability of either event A or B or both

A. \( \frac{2}{15} \)
B. \( \frac{3}{4} \)
C. \( \frac{7}{15} \)
D. \( \frac{1}{15} \)