Probability of a sure event is
A0.5
B1/2
C1
D0
Answer & Solution
Correct answer: C. 1
1. A sure event always occurs; all outcomes are favourable.
2. P(sure) = total / total = 1.
3. This follows from the second probability axiom.
4. So P(sure event) = 1.
_Source: ICAI BoS Foundation Paper 3, Ch 15 'Probability', p.5_
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