Question

A coin is tossed thrice. Find the probability of getting exactly two heads or at least one tail or two consecutive heads. The answer will be 1 or2/8​

Answer 1

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Answer:

1

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Answer 2

Answer:

total no of outcomes =8

outcomes of getting exactly two heads=3(HHT,HTH,THH)

outcomes of at least one tail(HHT,HTH,THH,TTH,THT,HTT,TTT)

outcomes 0f two consective heads(HHT,THH,HHH)

we take all the otcomes that are common that is HHT and THH

therefore probability=2/8