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Suppose we toss a fair coin repeatedly until we get exactly two heads, what is the probability taht exactly k tosses are required

Suppose we toss a fair coin repeatedly until we get exactly two heads, what is the probability taht exactly k tosses are required
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Suppose we toss a fair coin repeatedly until we get exactly two heads, what is the probability taht exactly k tosses are required

User SeanPlusPlus
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you would have a fifty fifty chance for head or tails but for two heads its a 75% or 2/4 chance
User Marc G
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