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OpenStudy (anonymous):
Hey y'all I just want to check my answer before I submit find an expression for the standard deviation for the following data. Complete the calculations algebraically data : 4a+6b : a-b ; a+b ; 2a-2b So i did all my work (half a page full) and got this wonderful answer a√3 + b√11 ______________ 2 is this the right answer??? thanks so much for helping me out :)
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