Tip:A–D to answerE for explanationV for videoS to reveal answer
If each observation of a Row data whose variance is σ2 is multiplied by h, then the variance of the new set is
- A.
σ2
- B.
h2σ2
(Correct Answer) - C.
hσ2
- D.
h+σ2
Explanation
-
Naye deviations calculate karein:
(yi−yˉ)=(hxi−hxˉ)=h(xi−xˉ)
-
Deviations ka square karein:
-
Variance ke formula mein apply karein:
-
Constant h2 ko bahar nikalne par:
Explanation
-
Naye deviations calculate karein:
(yi−yˉ)=(hxi−hxˉ)=h(xi−xˉ)
-
Deviations ka square karein:
-
Variance ke formula mein apply karein:
-
Constant h2 ko bahar nikalne par:
