tolong bantu jawabin dong sekarang ya
[tex]rata - rata \\ \frac{(nilai \times frekuensi)}{frekuensi} \\ \\ \frac{(40 \times 2) + (50 \times 6) + (60 \times 8) + (70 \times 5) + (80 \times 4) + (90 \times 3) + (100 \times 2)}{2 + 6 + 8 + 5 + 4 + 3 + 2} \\ \\ \frac{80 + 300 + 480 + 350 + 320 + 270 + 200}{30} = \frac{2.000}{30} = 66,667[/tex]
nilai di atas rata-rata
5 + 4 + 3 + 2 = 14 ( c )
[answer.2.content]
