37)
=((6×2) + (7×3) + (8x10) + (9×4) + (10×1))/20
= (12+21+80+36+10)/20
= 159/20
= 7,95 (c)
38)
= (8+8+8+9+6+7+10)/7
= 56/7
= 8 (d)
39)
1= 5 kemunculan
2 = 4 kemunculan
3 = 6 kemunculan
4 = 2 kemunculan
5 = 1 kemunculan
modus = kemunculan paling banyak
modus = 3 (b)
40)
petani = 125
pedagang = 78
pegawai = 35
buruh = 300 - 125 - 78 - 35 = 62
mata pencaharian plg banyak
= petani (a)
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37)
=((6×2) + (7×3) + (8x10) + (9×4) + (10×1))/20
= (12+21+80+36+10)/20
= 159/20
= 7,95 (c)
38)
= (8+8+8+9+6+7+10)/7
= 56/7
= 8 (d)
39)
1= 5 kemunculan
2 = 4 kemunculan
3 = 6 kemunculan
4 = 2 kemunculan
5 = 1 kemunculan
modus = kemunculan paling banyak
modus = 3 (b)
40)
petani = 125
pedagang = 78
pegawai = 35
buruh = 300 - 125 - 78 - 35 = 62
mata pencaharian plg banyak
= petani (a)