Question: There is a (1/4) probability the value of random variable X is 3, and a (3/4) probability the value is 5. What is the standard

There is a (1/4) probability the value of random variable X is 3, and a (3/4) probability the value is 5. What is the standard deviation of Y = X3 ? Express your answer rounded and accurate to two decimal places (e.g., 1.23).

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