Jawaban:
mean
60×4=240
70×6=420
80×5=400
90×4=360
100×1=100
semuanya d jumlah= 1.520
= 1.520 : 20 = 76
modus= 70 sejumlah 6 siswa
median= 60,60,60,60,70,70,70,70,70,70,80,80,80,80,80,90,90,90,90,100
d cari nilai tengahnya
= 70+80:2
= 150:2
=75
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Jawaban:
mean
60×4=240
70×6=420
80×5=400
90×4=360
100×1=100
semuanya d jumlah= 1.520
= 1.520 : 20 = 76
modus= 70 sejumlah 6 siswa
median= 60,60,60,60,70,70,70,70,70,70,80,80,80,80,80,90,90,90,90,100
d cari nilai tengahnya
= 70+80:2
= 150:2
=75