Prove the following covariance identities using summation properties:
Posted: Wed Jul 06, 2022 12:27 pm
Prove the following covariance identities using summationproperties:
n (i) For any {(xi, Yi)}_1, Say = n (ii) For any {(xi, Yi)}?_=1, Sxy 1 n n Σ(xi - T) Yi i=1 n ΣXiYi - T • Y i=1
n (i) For any {(xi, Yi)}_1, Say = n (ii) For any {(xi, Yi)}?_=1, Sxy 1 n n Σ(xi - T) Yi i=1 n ΣXiYi - T • Y i=1