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-84
-91
-68
-87
-72
-78
ditanya= mean?
diajawab=
mean=84+91+72+68+87+78 dibagi 6=80
berapa mean??
mean (rata-rata)
84 + 91+ 72 + 68 + 87 + 78 = 480
480 : 6 = 80
semoga membantu :)