Applicable Mathematics/Univariate Data

univarite statisticsEdit

a basic introduction (not complete)

 : "sigma" which means "sum of"

example:

 

(considering numbers 1 to 10)

sum of numbers from 2 to 4 by factor of 1 ( )

4

Σ 1xi = 2 + 3 + 4 = 9

i=2

the mean ( ) = sum of all scores / number of scores = Σx / n

also:

standard deviation (§)

variance (v)(§2)

box plots

-quartiles

stem plots

class limits, boundaries, classmarks

transformations on data sets

Standard scores (z)