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X P(x) 0 0.2 1 0.25 2 0.3 3 0.25 Find the standard deviation of this probability distribution. Give your answer to at least
X P(x) 0 0.2 1 0.25 2 0.3 3 0.25 Find the standard deviation of this probability distribution. Give your answer to at least 2 decimal places
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