How good are you with figures and formulas? Find out with these Mathematics past questions and answers. This Test is useful for both job aptitude test candidates and students preparing for JAMB, WAEC, NECO or Post UTME.
| Number | 1 | 2 | 3 | 4 | 5 | 6 |
| No of times | 25 | 30 | 45 | 28 | 40 | 32 |
A die rolled 200 times. The outcome obtained are shown in the table above.
What is the probability of obtaining a number less than 3 ?
0.125
0.150
0.275
0.500
0.725
Correct answer is C
Prob(less than 3) = \(\frac{25 + 30}{200}\)
= \(\frac{11}{40}\)
= 0.275
0.002
0.015
0.15
16
0.2
Correct answer is C
Prob(obtaining a 2) = \(\frac{30}{200}\)
= \(0.15\)
What is the probability that the total sum of seven would appear in toss of a fair die?
5/36
1/6
7/36
5/6
1
Correct answer is B
No of possible outcome = 36
Required outcome (R) = {(1, 6), (6, 1), (2, 5), (5, 2), (3, 4), (4, 3)}
n(R) = \(\frac{6}{36}\)
= \(\frac{1}{6}\)
What is the probability of having an even number in a single toss of a fair die?
1/6
1/3
1/2
2/3
5/6
Correct answer is C
Prob(even number in single toss) = \(\frac{3}{6}\)
= \(\frac{1}{2}\)
A fair die is rolled once. What is the probability of obtaining a number less than 3?
1/6
1/3
2/3
1/2
5/6
Correct answer is B
Prob(less than 3) = \(\frac{2}{6}\)
= \(\frac{1}{3}\)