Why use 3 point median smoothing instead of 3 point mean smoothing

[Wezanator123]

When do you use 3 point median smoothing ? and when do you use 3 point mean smoothing ?

[plato]

3 point median smoothing is quick method done without having to worry about individual numerical values and is not influenced unduly by outliers. It gives a rough idea of the smoothing effect  But it is not as accurate as 3 point mean smoothing which does use all individual data values.

[buzzwith]

Use 3 point median when there are extreme values.

[MrT011]

can we use the terms 'outliers' and 'extreme values' interchangeably on  the exam?

[rzak]

can we use the terms 'outliers' and 'extreme values' interchangeably on  the exam?

nah you can't, outliers are extreme values but extreme values arnt always outliers, its also good to quote these values when your talking about them

[plato]

It's probably best to use "outliers" with univariate data and "extreme values" with bivariate data as in the case you were referring to.