When the Variance $\sigma _ { z } ^ { 2 }$

question 3

Multiple Choice

When the variance $\sigma _ { z } ^ { 2 }$ of the error variable $\varepsilon$ is a constant no matter what the value of x is,this condition is called:

• A) heterocausality.
• B) homoscedasticity.
• C) homocausality.
• D) heteroscedasticity.

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