Q. - Universityku

Diketahui data : 8,5,5,7,8,9,10

Dari data di atas,tentukan:
•Range
•Standar deviasi

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Q.

Penyelesaian:

Range=10-5=5

—————————————-

Rata rata:

8+5+5+7+8+9+10/7

=52/7

=7,4

—————————————-

$s = sqrt{ frac{ sum(xi - underline{x} {)}^{2} }{n} }$

s=√(8-7,4)^2+(5-7,4)^2+(5-7,4)^2+(7-7,4)^2(8-7,4)^2+(9-7,4)^2+(10-7,4)^2/7

s=√21,2576/7/7

s=√3,0368

s=1,74264167

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