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Insane U Statistics That Will Give You U Statistics

The third

k

{\displaystyle k}

-statistic

k

3
,
n

(
x
)
=

(

x

i

x
site here

n

informative post )

3

n

/

(
(
n

1
)
(
check over here great site n

2
)
)

{\displaystyle k_{3,n}(x)=\sum (x_{i}-{\bar {x}}_{n})^{3}n/((n-1)(n-2))}

,
the sample skewness defined for

n

3

{\displaystyle n\geq 3}

,
is a U-statistic. .