Cara kerja
rata²(x) = (jumlah data) / (banyak data)
X = (7 + 7 + 7 + 9 + 9 + 8 + 6 + 6 + 8 + x) / 10
7,5 = (67 + x) / 10
67 + x = 7,5 × 10
x = 75 - 67
x = 8
Mapel : Matematika
Bab : Statistik
Kode : 9.2.6
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Cara kerja
rata²(x) = (jumlah data) / (banyak data)
X = (7 + 7 + 7 + 9 + 9 + 8 + 6 + 6 + 8 + x) / 10
7,5 = (67 + x) / 10
67 + x = 7,5 × 10
x = 75 - 67
x = 8
Mapel : Matematika
Bab : Statistik
Kode : 9.2.6