STATISTICS - Jamb Mathematics Past Questions and Answers

Question 251:

• JAMB 2005

A box contains 5 blue balls, 3 red balls and 2 white balls. Two balls are selected from the box with replacement. Find the probability of obtaining two blue or two red balls

A. 17/50
B. 3/25
C. 1/50
D. 3/250

Question 252:

• JAMB 2005

What is the probability that an integer x,(1 \(\leq\) x \(\leq\) 20) chosen at random is divisible by both 2 and 3?

A. 1/20
B. 1/3
C. 3/20
D. 7/10

Question 253:

• JAMB 2006

The table above shows the scores of a group of students in a physics test. If the mode is m and the number of students who scored 4 or more is n, what is (n, m)?

A. (33, 4)
B. (22, 4)
C. (33, 12)
D. (12, 4)

Question 254:

• JAMB 2006

The table above shows the scores of a group of students in a physics test. If the mode is m and the number of students who scored 4 or more is n, what is (n, m)?

A. (33, 4)
B. (22, 4)
C. (33, 12)
D. (12, 4)

Question 255:

• JAMB 2006

A final examination requires that a student answer any 4 out of 6 questions. In how many ways can this be done?

A. 15
B. 20
C. 30
D. 45