Homework Help: Statistics

Posted by Kassie on Sunday, March 21, 2010 at 6:43pm.

If Y' = a +bX for all i and a=the mean of Y - b*the mean of X, prove that SigmaY' = SigmaY (subscript i).
Hint: replace a with mean of Y minus b*mean of X and take the sum of both sides of the equation--that is, SigmaY'(subscript i)=Sigma(mean of Y-b*Mean of X + bX(subscript i).

I just dont even know where to begin with this problem. Please Help!!

No one has answered this question yet.

Answer this Question

Related Questions

math - Prove the identity: cos^4(x)-sin^4(x)=1-2sin^2(x).with explanation im ...
statistics - basically i'm at the begining of the text book doing summer ...
statistics - If μ =10 and σ =4 for a distribution of sample ...
statistics - the mean of all possible means(when dealing with a sampling ...
statistics - The mean GPA (grade point averagE. of all male students at a ...
Statistics - One sample of n=20 scores has a mean of M=50. A second sample of n=...
Statistics - Suppose that the percentage returns for a given year for all stocks...
statistics - Suppose that the percentage returns for a given year for all stocks...
statistics - A statistics practitioner formulated the following hypothesis: Ho: ...
statistics - Scores on a certain test are normally distributed with a variance ...

For Further Reading

First Name:
School Subject:
Answer: