Tentukan mean, median, dan modus dari data-data berikut. a. 3, 2, 4, 3, 3, 5, 4 b 12, 14, 14, 13, 10, 12 c. 27, 30, 29, 28, 27, 30, 28, 27 d. 7,5; 6,5; 4,5; 6,5

a. mean: 2×1=2 2+9+8+5=24
3×3=9 1+3+2+1=7
4×2=8 24÷7=3,428
5×1=5
median:2,3,3,3,4,4,5=3
modus:3

b.mean:10×1=10 10+24+13+48=95
12×2=24 1+2+1+2=6
13×1=13 95÷6=15,83
14×2=48
median:10,12,12,13,14,14
12+13=25÷2=12,5
modus:12 dan 14

c.mean:27×3=81 81+56+29+60= 226
28×2=56 3+2+1+2=7
29×1=29 226÷7=32,285
30×2=60
median:27,27,27,28,28,29,30,30
28+28=56÷2=28
modus:27

d.mean:4,5×2=9 9+11+19,5+22,5=62
5,5×2=11 2+2+3+3=10
6,5×3=19,5 62÷10=6,2
7,5×3=22,5
median:4,5;4,5;5,5;5,5;6,5;6,5;6,5;7,5;7,5;7,5
6,5+6,5=13÷2=6,5
modus:6,5+7,5=14÷2=7