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( 11. The following results relate to a bivariate dataon (x, y). Exy = 414, Ex = 120, Ey = 90,Ex? = 600, Ey? = 300 and n = 30. Later, itwas known that two pairs of observations(12, 11) and (6,8) were wrongly taken. Thecorrect pairs of observations being (10, 9)and (8, 10). The corrected value of thecorrelation coefficient is(€)a) 0.752b) 0.768 c) 0.846c) 0.846 d) 0.953 |
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