alleryA fair die is rolled once. The probability that the number shown is a multiple of 3 is:
A1/6 only
B1/3 exactly
C1/2 exactly
D2/3 exactly
Answer & Solution
Correct answer: B. 1/3 exactly
1. Multiples of 3 on a die are 3 and 6, so 2 favourable outcomes.
2. All 6 faces are equally likely.
3. P = 2/6 = 1/3.
_Source: syllabus Mathematics, Ch 14 'Probability' (kemh114)_
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