Rata – rata nya berapa ya kak?

Data : 8, 9, 8, 7, 10, 8, 10, 8

Rata rata :

= Jumlah data/Banyak data

= ( 8 + 9 + 8 + 7 + 10 +8 +1 0 + 8 )/8

= ( 32 + 36 )/8

= 68/8

= 8,5