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Pembahasan
data 4, 6, 8, 2, 5
n = 5
Rata-rata
Ragam data
S² = ¹/₅ [(4 – 5)² + (6 – 5)² + (8 – 5)² + (2 – 5)² + (5 – 5)²]
= ¹/₅ [ (-1)² + (1)² + 3² + (-3)² + 0²]
= ¹/₅ [1 + 1 + 9 + 9 + 0]
= ¹/₅ × 20
= 4
Simpangan baku
S = √S²
S = √4
S = 2
Jadi simpangan baku dari data 4, 6, 8, 2, 5 adalah 2
Pertanyaan Berikutnya: Apa pengertian Unisono
