selama 6 kali ulangan matematika ani mendapatkan nilai 8,7,9,6,7,8, nilai rata rata ulangan matematika ani adalah

Diketahui :
- Nilai = 8, 7, 9, 6, 7, 8
- n = 8

Ditanya : Mean = ....?

Penyelesaian :
- Mean :

[tex] mean = \frac{x1 + ... + xn}{n} \\ mean = \frac{8 + 7 + 9 + 6 + 7 + 8}{6} \\ mean = \frac{45}{6} \\ mean = 7.5[/tex]

Maaf Kalau Salah

8 + 7 = 15 + 9 = 24 + 6 = 30 + 7 = 37 + 8 = 45 : 6 = 7,5