Question: Prove that var[ ] = E[var[ |]] + var[E[ |]]. Use this relationship to show that i. var[ ] = E[var[ |]] if E[ |]

Prove that var[ ] = E[var[ |]] + var[E[ |]]. Use this relationship to show that i. var[ ] = E[var[ |]] if E[ |] is constant. ii. var[ |] var[ ] if var[ |] is constant.

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