Linked Questions
29 questions linked to/from Does causation imply correlation?
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Causality VS Correlation [duplicate]
When I have read this article 'http://www.analyticsvidhya.com/blog/2015/06/establish-causality-events/?utm_source=FBPage&utm_medium=Social&utm_campaign=150725' i still don't understand the ...
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Are two variables that are dependent also correlated? / Can two dependent variables not be correlated? [duplicate]
I cannot find the answer to my question anywhere, I hope someone can help.
I did a Chi-Square test with several variables to see if they were dependent or independent. The result showed that they ...
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If a study indicates no correlation between two variables, does it also indicate a lack of casual relationship? [duplicate]
Of course, correlation does not equal causation. But I am having trouble understanding if there is no correlation between two variables, would this indicate a lack of casual relationship between them ...
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Is correlation required condition for causation? [duplicate]
We all know that Correlation does not imply causation, but I am wondering whether there can be causation without correlation. If there are such cases, could you explain them?
I am asking this ...
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Does no correlation imply no causality?
I know that correlation does not imply causality but does an absence of correlation imply absence of causality?
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Does statistical independence mean lack of causation?
Two random variables A and B are statistically independent. That means that in the DAG of the process: $(A {\perp\!\!\!\perp} B)$ and of course $P(A|B)=P(A)$. But does that also mean that there's no ...
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What is effect size... and why is it even useful?
I have an introductory-graduate-level statistics background (assume I know mathematical statistics and probability at an undergraduate level (e.g., Wackerly et al., Ross' Probability), and have some ...
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Difference between rungs two and three in the Ladder of Causation
In Judea Pearl's "Book of Why" he talks about what he calls the Ladder of Causation, which is essentially a hierarchy comprised of different levels of causal reasoning. The lowest is concerned with ...
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Mathematical definition of causality
Let $Y$ and $X$ be random variables. $E(Y|X)$ is the conditional mean of $Y$ given $X$. We say $Y$ is not causally related to $X$ if $E(Y|X)$ does not depend on $X$, which implies it is equal to $E(Y)$...
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Is the linearity assumption in linear regression merely a definition of $\epsilon$?
I am revising linear regression.
The textbook by Greene states:
Now, of course there will be other assumptions on the linear regression model, such as $E(\epsilon|X)=0$.
This assumption ...
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Simulating data - correlation vs causation
I'm just dipping my toe into correlation vs causation, so forgive me if I butcher some of the concepts here.
To get a better understanding of these concepts from data, I would like to simulate data ...
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Independence vs Autocorrelation
In Section 3.2 of R. S. Tsay, Analysis of Financial Time Series, I read:
The basic idea behind volatility study is that the series {r_t} is either serially uncorrelated or with minor lower order ...
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Correlation vs. causality
Correlation does not imply causation.
Causation does imply correlation but not necessarily linear correlation.
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So does correlation imply high-order causation?
If A and B are correlated, is it ...
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Does autocorrelation imply temporal dependence?
It is always said that a time series should be stationary for forecasting using classical methods.
While converting a time series to stationary, we detrend and deseasonalize the time series.
Does this ...
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Suppose that $R^2=0$ . Does this imply that Y and X are unrelated? [duplicate]
Possible Duplicate:
Under what conditions does correlation imply causation?
Can somebody illustrate how there can be dependence and zero covariance?
Or could there still be a relationship? Is ...
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