tentukan simpangan buku dari data 5,9,3,6,7 dan 1

mean = 5+9+3+6+7+1 = 31/6 = 5,17 = 5

√(5-5)²+(9-5)²+(3-5)²+(6-5)²+(7-5)²+(1-5)²
------------------------------------------------------ =
√6

√0+16+4+1+4+16. √ 41
----------------------- = ----- = √6,73 = √7
√6. ___________√ 6