Math, asked by melindaliana123, 10 months ago

Diadakan ulangan matematika di suatu kelas. Diperoleh nilai 4 ada 6 orang, nilai 5 ada
10 orang, nilai 6 ada 4 orang, nilai 7 ada 12 orang dan nilai 8 ada 8 orang. Nilai rata-rata
matematika di kelas tersebut adalah…
A. 5,00
B. 5,50
C. 6,15
D. 7,25
E. 8,00

Answers

Answered by Horrorgirl
6

Answer:

What type of language is this dear!

Answered by Itsnacha
0

jawaban C (6,15)

 \frac{(4 \times 6)+(5 \times 10)+(6 \times 4)+(7 \times 12) + (8 \times 8)}{6 + 10 + 4 + 12 + 8} \  \\ =  \frac{24 + 50 + 24 + 84 + 64}{40}  \\  =  \frac{246}{40}  = 6.15

Similar questions