Question: Can I please have help with solving a,b,c. Let X1. X2, X3 be independent normal random variables which all have mean 8.3 and standard deviation

Can I please have help with solving a,b,c.

Can I please have help with solving a,b,c. Let X1. X2,

Let X1. X2, X3 be independent normal random variables which all have mean 8.3 and standard deviation 0.9. 1) a) State the mean of X1 + 5X2 - 3X3. Number (exact value) b) State the standard deviation of X] + 5X2 - 3X3. Number (enter your answer correct to at least 3 decimal places) c) State P(X ] + 5X, - 3X3

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