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which of the following is a violation of the independence assumption? negative correlation a pattern of...

which of the following is a violation of the independence assumption?

negative correlation
a pattern of cyclical error terms over time
positive autocorrelation
a pattern of alternating error terms over time
all of the other choices are correct

Math   Statistics-And-Probability   
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Answer #1

we know that correlation means two variables are related and when there is a relation between variables, they are not independent.

So, either a negative or a positive correlation is a violation of independence assumption. Option A and B are correct.

Again, error terms over time is another violation of independence, be it cyclical error or alternating error.

So, all option are correct

Therefore, option E is correct answer

all of the other choices are correct

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