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36 36 36 37 37 37 37 37 38 38 38 38 38 38 39 39 39 39 40 40
Mean : Jumlah nilai data / jumlah data
= 3(36) + 5(37) + 6(38) + 4(39) + 2(40) / 20
= 108 + 185 + 228 + 156 + 80 / 20
= 757 / 20
= 37,85
Modus : nilai data yang paling sering muncul
= 38 sebanyak 6 buah
Median : nilai tengah data
jumlah data = 20
20 + 1 / 2 = 21 / 2 = 10,5
Jadi median ada di antara data ke 10 dan 11
= 38 + 38 / 2
= 76 / 2
= 38