Three coins are tossed. Find the probability of exactly 2 heads -
Solution
Correct Answer: Option A
n(S) = 23 = 8
Let E = Event of getting exactly two heads,
= {(H, H, T), (H, T, H), (T, H, H)}
= n(E)
= 3
Required probability = 3/8
Let E = Event of getting exactly two heads,
= {(H, H, T), (H, T, H), (T, H, H)}
= n(E)
= 3
Required probability = 3/8
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