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Probability
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OpenStudy (anonymous):
Let Y be a random variable with probability distribution P(Y = y) = r*s^(y-1); for y = 1; 2; 3;...; and 0 < s < 1 Derive the value of r that makes this a valid probability distribution?
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OpenStudy (anonymous):
my answer is r = 1-s is this right?
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