Question

#Tolong DibantuBesok Dikumpulin
No 2 Tolong Dibantu✌

Answer 1

Jumlah keseluruhan : 52
4 : 15
5 :10
6 :18
7 : 52 - 43 : 9
mean/rata2 : jmlh smua data
____________
jmlh bnyak data
= (4x 15 ) + ( 5x10 ) + (6 x18) + (7x8)
____________________________
52
= 60 + 50 + 108 + 63
_______________
52
281
____
52
= 5,40 rata rata nya
maaf kalau salah