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Let X be a random variable, with cumulative distribution function FX . Prove that P(X = a) = 0 if and only if the function FX is continuous at a.
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For an environmental group, it is known that 75% of their door-to-door solicitations result in a donation of some kind. Find the probability that... (Hint: first determine what is a 'success' and what is a 'failure' base ...
What is the algebraic equation for the coefficient fo variations?
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