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360 - 36 - 45 - 81 - 90 = 108°
Biru = 108/81 x 162 = 216 orang (B)
37.
Mean = (48 + 49 + 32 + 9 + 20)/22 = 158/22 = 7.18 (B)
38.
Median = (110 + 113)/2 = 223/2 = 111.5 (B)
39. A
40.
Mean = (98 + 306 + 735 + 324)/2 = 1464/14 = 104.57
Jadi, yang di atas 104.57 adalah yang tinggi badannya :
105 = 7 orang
108 = 3 orang
Jumlahnya ada 10 orang (C)