Simpangan baku data 6, 4, 5, 6, 5, 7, 8, 7

by

Pembahasan:

6, 4, 5, 6, 5, 7, 8, 7
x︦ = 6 + 4 + 5 + 6 + 5 + 7 + 8 + 7
                      8
x︦ = 6
S² = Σ(X₁ – X₂)
               n
= 2(6 – 6)² + (4 – 6)² + 2(5 – 6)² + 2(7 – 6) + 8
                                 8
= 0 + 4 + 2 + 2 + 4
               8
= 3
   2
S = √3/2
S =    1  
       2√6
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