- CFA Exams
- CFA Level I Exam
- Study Session 2. Quantitative Methods (1)
- Reading 5. Multiple Regression
- Subject 10. Heteroskedasticity
CFA Practice Question
If the variance of the errors differs across observations, the regression is said to exhibit ______.
A. Serial correlation.
B. Heteroscedasticity.
C. Multicollinearity.
Explanation: If the error terms do not have equal variances, they are said to be heteroscedastic, from two Greek words meaning "having different spreads".
User Contributed Comments 2
User | Comment |
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murli | Median not affected by chang in value, unless the sequence of location of variables is changed! |
iroy | In this case the sequence is unchanged since it is the highest score which is increased. |