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Question
For a bivariate data,
`bar x = 53 , bar y = 28 , "b"_"yx"=-1.5 and "b"_"xy"=- 0.2` Find Estimate of X for y = 25.
Solution
Estimate of X for y = = 25.
`("X" - bar x) = "b"_"xy" ("Y" - bar y)`
X - 53 = - 0.2 (Y - 28)
X - 53 = -0.2 Y + 5.6
X = - 0.2 Y + 5.6 + 53
X = - 0.2 Y + 58.6
When Y = 25,
X = - 0.2(25) + 58.6
∴ X = 53.6
∴ Estimate of X when Y = 25 is 53.6.
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