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List four possible outcomes for this Statistics problem?
The question says: You are going to toss a coin repetedly in sucessive trials until you get a head for the first time, and then you are going to stop the experiment. Assuming that the coin is unbalanced with P(head)=1/5.
Help please!
1 Answer
- daSVgrouchLv 71 decade agoFavorite Answer
first toss p(h) = 1/5, p(t) = 4/5 (so 1/5 likelihood of ending at this point)
if tails, next toss is same as above, so after 2 tosses probability of head is 1/5 (4/5) = 4/25 and you stop
but probability of two tails is 16/25 and you continue, etc.