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Clicker Questions MT 1

Clicker Questions MT 1 - Clicker Answers These slides give...

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1 Clicker Answers These slides give the answer to the clicker questions. You may need to consult the original slides for some of the context for the question. (It is suggested that you add these in the appropriate places in your current notes). The correct answer is given in red.
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2 Clicker Question V ar ( y ) = w T C z w = w T λ w = λ What assumption was necessary to go from the red to the blue above A : w is an eigenvector of C z B : w is unit length C : w has eigenvalue λ D : B and C E : A and C
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3 Clicker Question V ar ( y ) = w T C z w = w T λ w = λ What assumption was necessary to go from the blue to the magenta above A : w is an eigenvector of C z B : w is unit length C : w has eigenvalue λ D : B and C E : A and C
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4 Clicker question v2 c1 c2 z1 z2 (PC1) (PC2) v1 What does the c vector represent? A) The covariance matrix B) The top eigenvector of the Covariance matrix C) The coordinates of the zero-meaned data point in the Principal components space
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5 Clicker question
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Clicker Questions MT 1 - Clicker Answers These slides give...

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