Question

three unbiased coined are tossed . what is the probability of getting at most two heads ???


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Answer 1

Answer:

THE ANSWER IS 1/2

Step-by-step explanation:

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Answer 2

Total outcomes = 8

(H,H,H)  (H,H,T) (H,T,H)  (H,T,T)  (T,H,H)  (T,H,T)  (T,T,H)  (T,T,T)

Possible outcomes for getting at least 2 heads are

(H,H,H), (H,H,T), (H,T,H), (T,H,H) = 4

Required probability is 4 / 8 = 1 / 2