bantu ya.....thx.......butuh cepat...
Matematika
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Pertanyaan
bantu ya.....thx.......butuh cepat...
1 Jawaban
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1. Jawaban Kesrev
1. 5 x 4 = 20, 6 x 5 = 30, 7 x 10 = 70, 8 x 5 = 40, 9 x 6 = 54
mean = 20+30+70+40+54 = 120+94 = 214 : 30 = 7,133
median = 5,5,5,5,6,6,6,6,6,7,7,7,7,7,7,7,7,7,7,8,8,8,8,8,9,9,9,9,9,9 = dari depan coret 14 angka dan dari belakang coret 14 angka = 7+7 = 14 : 2 = 7
modus = nilai 7 (10 orang)
2. 6 x 4 = 24, 7 x 5 = 35, 8 x 9 = 72, 9 x 2 = 18
mean = 24+35+72+18 = 59+90 = 149 : 20 = 7,45
median = 6,6,6,6,7,7,7,7,7,8,8,8,8,8,8,8,8,8,9,9 = dari depan coret 9 angka
dan dari belakang coret 9 angka = 8+8 = 16 : 2 = 8
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