Three coins are tossed. Find the probability of exactly 2 heads -
সমাধান
সঠিক উত্তর: 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
