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6 (5) = 30
7 (6) = 42
8 (x) = 8x
9 (3) = 27
10 (1) = 10
total = 5+30+42+8x+27+10 = 114+8x
frekuensi = 1+5+6+x+3+1 = 16+x
mean = 7,3
dikalikan silang
114+8x = 116,8+7,3x
8x-7,3x = 116,8 - 114
0,7x = 2,8
x = 2,8 : 0,7
x = 4
modus = nilai yang paling banyak
modus = 42
median = (7+7) : 2 = 7