Q. 75.0( 2 Votes )

# Three coins are tossed simultaneously. Find the probability of getting

(i) at least one head (ii) exactly two tails (iii) at least two heads.

Answer :

The outcomes when three coins are tossed aare:(H H H) (H H T) (H T H) (T H H) (T T H) (T H T) (H T T) (T T T)

(i) No of probable outcomes of getting at least one head = 7

⇒ probability

(ii) no of probable outcomes of getting exactly 2 tails = 3

⇒ probability

(iii) no of probable outcomes pf at least two heads = 4

⇒ probability

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