2 9 2 7

2 9 2 7

Input
{2, 9, 2, 7}
Total
2 + 9 + 2 + 7 = 20
Statistics
mean | 5
median | 4.5
sample standard deviation | 3.559
Vector length
sqrt(138)~~11.7473
Normalized vector
(sqrt(2/69), 3 sqrt(3/46), sqrt(2/69), 7/sqrt(138))
Possible closed form
(no form found in terms of holonomic sequences)

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