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mean
=5x4+6x6+7x10+8x9+9x6+10x5/40
=20+36+70+72+54+50/40
=252/40
=6,3
modus
=7
median
=n+1/2
=40+1/2
=41/2
=20,5
mean :
f
4 x 5 = 20
6 x 6= 36
10 x7 = 70
9 x8= 72
6 x9= 54
5 x 10 = 50 +
40 302
mean : 302 = 7,55
40
modus (yang paling banyak muncul) : 7
median : 7