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A coin is based so that a head is twice as likely to occur as a tail. If the coin is tossed 3 times, then the probability of getting two tails and one head is-
  • a)
    2/9
  • b)
    1/9
  • c)
    2/27
  • d)
    1/27
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
A coin is based so that a head is twice as likely to occur as a tail. ...
 Let probability of tail is 1/3
⇒ Probability of getting head =2/3
∴ Probability of getting 2 tails and 1 head
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A coin is based so that a head is twice as likely to occur as a tail. If the coin is tossed 3 times, then the probability of getting two tails and one head is-a)2/9b)1/9c)2/27d)1/27Correct answer is option 'A'. Can you explain this answer?
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