Question: Consider the following (artificial) data set. Copy the code line by line without the > sign and run it in R. > A = c(3.07,

Consider the following (artificial) data set. Copy the code line by

Consider the following (artificial) data set. Copy the code line by line without the > sign and run it in R. > A = c(3.07, 0.36, 2.41, 3.88, 3.99, 0.74, 0.66, 4.27, 2.51, 3.19) > B = c(39, 48, 35, 49, 38, 73, 57, 50, 52, 72) > C = C(6.0, -45.4, 27.5, 32.1, 49.7, -72.1, -57.0, 2.6, 3.1, 10.0) > D = c(-1,0,0,1,1,-1,-1,-2,0, 2) > df = data.frame (A=A, B=B, C=C, DED) Compute the variance inflation factor of variable A (on two digits)

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