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Verified answer
- Statistika -xgab = 7,7
n1 = 5
x1 = 7,5
n2 = 1
Ditanya :
x2 = ?
Penyelesaian :
xgab = (x1n1 + x2n2) / (n1+n2)
7,7 = (7,5.5 + x2.1) / (5+1)
7,7 = 37,5 + x2 / 6
46,2 = 37,5 + x2
x2 = 8,7
Jadi, nilai si Budi adalah 8,7
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-vin