Vartanama, May '15
By Pawan Dhall
By Pawan Dhall
Among dictionary synonyms for ‘outlier’ are words like
‘non-conformist’, ‘maverick’, ‘eccentric’, ‘dissident’, ‘iconoclast’ and
‘outsider’. According to Wikipedia, in statistics, outliers are data points
that are further away from the sample mean than what is considered reasonable.
Outlier data points may indicate faulty data, errors in statistical or
mathematical procedures or inapplicability of certain theories. But they may
also exist because that is the reality and not because of any anomaly,
bell-shaped normal curves be damned. Moreover, statisticians value outlier data
quite a bit and take great care before deleting or excluding them, if at all they
do so and thank god for that!