# Thread: Random variable statistics help

1. ## Random variable statistics help

Im doing this online quiz which was supposed to be done tomorrow after the lecture so im not sure how to solve it. Please help! Heres the question:

Random variables and have means 3 and 4.5 respectively. What is the mean of ??

2. ## Re: Random variable statistics help

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3. ## Re: Random variable statistics help

4e(y)-2e(x)-2=4(4.5)-2(3)-2=.......