Probability - Jamb Mathematics Past Questions and Answers

Question 51:

• JAMB 2000

If U = {x : x is an integer and 1 \(\leq\) x \(\leq\) 20
E₁ = {x : x is a multiple of 3}
E₂ = {x : x is a multiple of 4}
and an integer is picked at random from U, find the probability that it is not in E₂

A. 3/4
B. 3/10
C. 1/4
D. 1/20

Question 52:

• JAMB 2001

Teams P and Q are involved in a game of football. What is the probability that the game ends in a draw?

A. 2/3
B. 1/2
C. 1/3
D. 1/4

Question 53:

• JAMB 2002

The probability of a student passing any exam is 2/3. If the student takes three exams, what is the probability that he will not pass any of them?

A. 2/3
B. 4/9
C. 8/27
D. 1/27

Question 54:

• JAMB 2002

The venn diagram above shows the numbers of students offering music and history in a class of 80 students. If a student is picked at random from the class, what is the probability that he offers Music only?

A. 0.38
B. 0.13
C. 0.50
D. 0.25

Question 55:

• JAMB 2003

A bag contains 5 blacks balls and 3 red balls. Two balls are picked at random without replacement. What is the probability that a black and red balls are picked?

A. 15/28
B. 13/28
C. 5/14
D. 3/14