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Old 10-24-2011   #1
allan89a
 
Join Date: Oct 2011
Posts: 1
Default Help?

What is the step by step procedure to solve for Variance(aX+bY-cZ)??
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Old 11-13-2011   #2
Jonathan W
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Cool The four steps

Step 1: Calculate the mean.

Step 2: Calculate deviations from the mean.

Step 3: Squaring the deviations.

Step 4: Calculate variance as average of squared deviations.
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