Training and consultancy for testing laboratories.

What is an outlier?

outlying point

In repeated chemical analysis which assumes normal probability distribution, we may find some extreme (i.e. the biggest or smallest result) is a suspect which seems to be quite different from the rest of the data set.  In other words, this result does not seem to belong to the distribution of the rest of the data.  This suspect value is called an outlier.  Read more …. What is an outlier ?

 

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