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the variance of 15 observations is 4. if each observation is increased by 9 find the resulting variance.

the variance of 15 observations is 4. if each observation is increased by 9 find the resulting variance.

Grade:11

2 Answers

Vijay Mukati
askIITians Faculty 2590 Points
8 years ago
Dear Student,Variance isinvariantwith respect to changes in alocation parameter. That is, if a constant is added to all values of the variable, the variance is unchanged. Therefore the variance will be 4. Thanks.
Raghu Vamshi Hemadri
72 Points
8 years ago
Dear Student,Variance isinvariantwith respect to changes in alocation parameter. That is, if a constant is added to all values of the variable, the variance is unchanged. Therefore the variance will be 4. Thanks.

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