Probability - Jamb Mathematics Past Questions and Answers

Question 66:

• JAMB 2008

The probability of picking a letter T from the word OBSTRUCTION is

A. ¹/₁₁
B. ²/₁₁
C. ³/₁₁
D. ⁴/₁₁

Question 67:

• JAMB 2008

The result of rolling a fair die 150 times is as summarized in the table above. What is the probability of obtaining a 5

A. ³/₁₀
B. ¹/₅
C. ¹/₆
D. ¹/₁₀

Question 68:

• JAMB 2009

The probability of a student passing any examination is ²/₃. If the students takes three examination, 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 69:

• JAMB 2009

Marks	2	3	4	5	6	7	8	9
No. of students	3	4	1	0	4	5	2	1

The table above shows the distribution of marks of students in a test. Find the probability of passing the test if the pass mark is 5


A. 3

5

B. 2

5

C. 7

20

D. 1

5

Question 70:

• JAMB 2010

If three unbiased coins are tossed, find the probability that they are all heads

A. \(\frac{1}{2}\)
B. \(\frac{1}{3}\)
C. \(\frac{1}{9}\)
D. \(\frac{1}{8}\)