Nilai simpangan baku dari data 6,6,6,7,7,8,8dan 8 adalah

Question

Matematika Diposting : 2018-03-09 Diupdate : 2018-03-09 zamronironi654

Pertanyaan

Answer 1

[tex]X= \frac{6+6+6+7+7+8+8+8}{8}=7 [/tex]

[tex]S= \sqrt{ \frac{(6-7)^2+(6-7)^2+(6-7)^2+(7-7)^2+(7-7)^2+(8-7)^2+(8-7)^2+(8-7)^2}{8} } [/tex]

[tex]S= \sqrt{ \frac{(-1)^2+(-1)^2+(-1)^2+0^2+0^2+1^2+1^2+1^2}{8} } [/tex]

[tex]S= \sqrt{ \frac{(1+1+1+0+0+1+1+1}{8} }= \sqrt{\frac{6}{8} } = \frac{1}{2} \sqrt{\frac{6}{2}} = \frac{1}{2} \sqrt{3} [/tex]