Clustering illusion
Belief that streaks or clusters in parts of random data are non-random.
Cause
The illusion is caused by a human tendency to under-predict the amount of variability likely to appear in a small sample of random data.
Belief that streaks or clusters in parts of random data are non-random.
The illusion is caused by a human tendency to under-predict the amount of variability likely to appear in a small sample of random data.