हिंदी

If u = x-ac and v = y-bd, then bxy = ______ - Mathematics and Statistics

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प्रश्न

If u = `(x - "a")/"c"` and v = `(y - "b")/"d"`, then bxy = ______ 

रिक्त स्थान भरें

उत्तर

`"c"/"d"` buv 

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Properties of Regression Coefficients
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 2.3: Linear Regression - Q.3

संबंधित प्रश्न

Bring out the inconsistency in the following:

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Bring out the inconsistency in the following:

bYX = 2.6 and bXY = `1/2.6`


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  Sales Adv. Exp.
Mean 40 6
S.D. 10 1.5

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What should be the advertisement expenditure if the firm proposes a sales target ₹ 60 crores?


If the two regression lines for a bivariate data are 2x = y + 15 (x on y) and 4y = 3x + 25 (y on x), find

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  4. bXY
  5. r [Given `sqrt0.375` = 0.61]

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Choose the correct alternative:

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If u = x – a and v = y – b then bxy = buv 


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(₹ in lakhs)
DEMAND (y)
(₹ in lakhs)
Mean 10 90
Variance 9 144

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  x y
Mean 53 142
Variance 130 165

`sum(x_i - barx)(y_i - bary)` = 1170


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