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= 1/5 (2 + 1 + 4 + 2 + 6)
= 1/5 x 10 = 2
Rumus simpangan rata-rata = (x1-rerata +, x2-rerata, dst)
= (2-2) + (1-2) + (4-2) + (2-2) + (6-2) =
5
= (0 + (-1) + 2 + 0 + 4) / 5
= 5 / 5
= 1
Maka simpangan rata-ratanya adalah 1
jika cukup membantu .. boleh dong minta bintangnya ? :)