A) the probability of getting exactly 2 heads is 1/2
B) the probability of getting atleast one head is 5/8
C) the probability of getting almost 2 tails is 3/8
D) the probability of getting exactly one tail is 3/8
Correct Answer: D
Solution :
Three coins tossed = [HHH, HHT, HTH, HIT, THH, THT, TTH, TTT] [a] P (exactly 2 heads) =3/8 [b] P (atleast one head) =7/8 [c] P (atmost 2 tails) =7/8 [d] P (exactly one tail) =3/8
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