25 pairs of observations of (x_i,y_i) yield \sumx_i=125, \sumy_i=100, \sumx^2_i=650, \sumy^2_i=436, \sumx_iy_i=520. If the transformation u_i = x_i - 3, v_i = y_i - 3 is done, then the correlation coefficient of ()u_i,v_i is

AP ICET 11 Sep 2020 Shift 1 Paper

Question : 146 of 200

Marks: +1, -0

25 pairs of observations of

(x_i,y_i)

yield

∑x_i=125, ∑y_i=100, ∑x^2_i=650, ∑y^2_i=436, ∑x_iy_i=520

. If the transformation

u_i = x_i - 3, v_i = y_i - 3

is done, then the correlation coefficient of

()u_i,v_i

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