SOLUTION: I need a little boost on this one to refresh my memory! Please! A coin is weighted so that tails is twice as likely as heads to occur. What probability should we assign to heads?

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Question 539694: I need a little boost on this one to refresh my memory! Please!
A coin is weighted so that tails is twice as likely as heads to occur. What probability should we assign to heads? to tail?


Thank you so much!
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
Let the probability of obtaining a head be p. Then the probability of getting a tail is 2p. They add up to 1 (disjoint, either must happen), so p + 2p = 1, p = 1/3 and 2p = 2/3.