UPSC NDA Math Model Paper 2

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Question : 68 of 120

Marks: +1, -0

Find regression line equations if means x=20 and y=10,σx=10,σy=5,r=0.5.

y = 5x + 5
y = 0.25x - 5
y = -0.25x - 5
y = 0.25x + 5

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