# Question: use the knowledge of quotintroductions to econometricsquot to answer the...

###### Question details

Use the knowledge of "Introductions to Econometrics" to answer the following questions：

Yt=β0+β1Xt+Ut

Show that for the Least Square Estimators:

a) The sum of the residuals equals zero.

b) The sum of the product of the independent variable and residuals equals zero.

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