A bag contains 5 coins. Four of them are fair and one has heads on both sides. You randomly pulled one coin from the bag and tossed it 5 times, heads turned up all five times. What is the probability that you toss next time, heads turns up. (All this time you don't know you were tossing a fair coin or not).
What is the probability that you toss next time, heads turns up
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probability
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1What do *you* think? Where are you stuck? – 2011-08-07
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0should I consider this problem as independent of previous toss or not? – 2011-08-07
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0**Hint**: Consider how you'd answer if at least one of the previous tosses had been a tail. – 2011-08-07