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

question 128

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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