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Question 5 The distribution of a discrete random variable X is given by the table below. X -22 5 22 p(x) 0.4 0.2 0.4 Calculate

Question 5 The distribution of a discrete random variable X is given by the table below. X -22 5 22 p(x) 0.4 0.2 0.4 Calculate the standard deviation of X. Round your answer to 3 digits after the decimal point

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