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Need some help with how to answer this question. Probability based.

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1. Hello,

would appreciate any help for this. Just confused as to what to say.

So we are given that Zi ~ N(0,1) and we need to state what type of distribution and parameters random variable V will have.

V = (Sum from i=1 to n) * (aiZi + bi), where ai and bi are real constants.

I've tried finding the mean by taking expectations but I get confused with the aiZi part.

I know they're looking for something like V ~ N(Mean, Variance)

Any help??
2. (Original post by Mr XcX)
Hello,

would appreciate any help for this. Just confused as to what to say.

So we are given that Zi ~ N(0,1) and we need to state what type of distribution and parameters random variable V will have.

V = (Sum from i=1 to n) * (aiZi + bi), where ai and bi are real constants.

I've tried finding the mean by taking expectations but I get confused with the aiZi part.

I know they're looking for something like V ~ N(Mean, Variance)

Any help??
Could you be a bit more specific? as in where is the aizi bit confusing you?

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