Question: (X,-X) Why do we write the estimate b, as 2k Y, where k, = %3D EX,-X in O a. It is easier to prove

(X,-X) Why do we write the estimate b, as 2k Y, where

(X,-X) Why do we write the estimate b, as 2k Y, where k, = %3D EX,-X in O a. It is easier to prove the biasedness and the minimum variance for b, using the k; properties. O b. Use k, properties to prove various properties of the sampling distributions of b, O c. Use k, to write b, as a linear combination of Xi O d. All of the above

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