4. modus = 80
rata - rata =
60 x 4 = 240
65 x 4 = 260
70 x 7 = 490
80 x 9 = 720
85 x 6 = 510
____+
30
2.220 : 30 = 74
jadi, rata - ratanya = 74
maaf kalo slaah + cuma bisa ngerjain 4 karena no.5 ga ngerti
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4. modus = 80
rata - rata =
60 x 4 = 240
65 x 4 = 260
70 x 7 = 490
80 x 9 = 720
85 x 6 = 510
____+
30
2.220 : 30 = 74
jadi, rata - ratanya = 74
maaf kalo slaah + cuma bisa ngerjain 4 karena no.5 ga ngerti