Question:
If the probability of an event is P, then the probability of its completmentry event will be
(a) P-1
(b) $P$
(c) $1-P$
(d) $1-\frac{1}{P}$
Solution:
(c) Since, probability of an event + probability of its complementry event = 1
So, probability of its complementry event = 1 – Probability of an event = 1 – P
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