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Verified answer
Mapel : MatematikaBab : Statistika
Diketahui :
- x1 = 65
- x2 = 70
- f1 = 10
- f2 = 15
Ditanya :
- x gabungan = .....?
Penyelesaian :
- x gabungan :
Maaf Kalau Salah
Verified answer
Rata gabungan= (jumlah laki. nila rata" lk) + (jumlah pr. nilai rata" pr)/ jumlah murid ( lk+ pr)→ (10. 65)+ (15. 70)/ 25
→ (650 + 1050) / 25
→1700 / 25
→ 68