STAt KelompoKragam / variansi = s²
[tex]\sf S^2 = \dfrac{\sum{fi (xi - X)^2}}{\sum{fi}}[/tex]
[tex]\sf S^2 = \dfrac{107,4}{20} = 5, 37[/tex]lihat tabel
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STAt KelompoK
ragam / variansi = s²
[tex]\sf S^2 = \dfrac{\sum{fi (xi - X)^2}}{\sum{fi}}[/tex]
[tex]\sf S^2 = \dfrac{107,4}{20} = 5, 37[/tex]
lihat tabel