Question: 4 points Save Answer The random variable X has mean 10 and standard deviation 4. The random variable Y has mean -15 and standard deviation

4 points Save Answer The random variable X has mean 10 and standard deviation 4. The random variable Y has mean -15 and standard deviation 6. The two random variables are independent. What is the standard deviation of 2Y - X? 8 a. 11.31 b. 12.65 Oc. 28.05 d

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