The assumption that data is independent and identically distributed (IID) is a nearly ubiquitous assumption in statistics. Very few statistical results attempt to test whether this assumption is correct. There is a reason for that.
The assumption that data is independent and identically distributed (IID) is a nearly ubiquitous assumption in statistics. Very few statistical results attempt to test whether this assumption is correct. There is a reason for that.
Improbable World 
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