A fair coin is tossed 5 times. What is the probability of getting at least three heads on consecutive tosses?
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1]
3/16
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2]
1/4
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3]
7/24
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4]
5/16
Solution
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A person tosses an unbiased coin. When head turns up, he gets Rs.8 and tail turns up he loses Rs.4. If 3 coins are tossed, what is probability that he gets a profit of Rs.12?
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