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Exponential and Geometric Model
Exponential model
y = abx
Take log of both sides
log y = log a + log bx
log y = log a + xlog b
Assume log y = Y and log a = A and log b = B
Hence we get Y = A + Bx. It is a linear regression model
Geometric model
y = axb
By using the similar technique as above
log y = log a + b log x
Y = A + bX
Whereas Y = log y
A = log a
X = log x
By using linear regression technique or the method of least squares, it is possible to calculate the value of a and b.
If the diameter of a circle is tripled times, the circumference is a. multiplied by 3. b. multiplied by 6. c. multiplied by 9. d. multiplied by 12. a. The formula fo
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4x+3y+7=0 and 3x+4y+8=0 find the regression coefficient between bxy and byx.
4x+8=32
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