posted by B.B. on .
What are the odds in favor of getting at least one head in three successive flips of a coin?
Is this correct?
Could you please explain if I got it wrong?
No. Figure the probability of getting three tails in three tosses, then the probability of getting at least one head is that subtracted from one.
The sample space of outcomes is small enough so we can list them
notice that there are 7 with at least one H, and only one with no H
so the odds in favour of getting at least one head in three successive flips of a coin is 7:1
(I hope you meant "odds" and not probability.
The prob of at least one head is 7/8
odds in favour of some some event = (prob of that event):(prob of NOT that event)