CA CPT Dec 2015 Question Paper Quantitative Aptitude for online practice

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Question : 37 of 50

Marks: +1, -0

Which of the following is true:

$b_xy = {r.S_y}/{S_x}$
$b_{yx} = {r.S_y}/{S_x}$
${Σxy}/{Sx}$
${Σ{xy}}/{Sy}$

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