Two groups of male students cast their vote on a particular proposal. The results are...
MATHEMATICS
WAEC 1990
Two groups of male students cast their vote on a particular proposal. The results are as follows:
| In favor | Against | |
| Group A | 128 | 32 |
| Group B | 96 | 48 |
If a student is chosen at random, what is probability that he is against the proposal?
- A. 3/19
- B. 4/19
- C. 5/19
- D. 9/19
Correct Answer: C. 5/19
Explanation
Probability that the student is against the proposal
= \(\frac{32 + 48}{128 + 32 + 96 + 48}\)
= \(\frac{80}{304}\)
= \(\frac{5}{19}\)
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