perhatikan gambar berikut harus benar jawabnya janagan asal jawab pakai cara

no.3
3×5=15
4×2=8
5×3=15
6×5=30
7×4=28
8×1=8
9×4=36
10×3=30

n=140
f=27

rata"= n per f
= 140 per 27
= 5,1
jadi nilai yang diatas rata" adalah 17 anak


no.4

4×6=24
5×2=10
6×7=42
7×4=28
8×7=56
9×3=27

n=187
f=29

a.mean
= 187 per 29
= 6,4
b.modus
= 6&8
c.median
= 6
d.dibawah rata"
= 15 anak

3.((3×5)+(4×2)+(5×3)+(6×5)+(7×4)+(8×1)+(9×4)+(10×3)):27
=(15+8+15+30+28+8+36+30):27
=170:27
=6.2
yg diatas rata rata 6.2=12 org

4.mean=((4×6)+(5×2)+(6×7)+(7×4)+(8×7)+(9×3)):29=(24+10+42+28+56+27):29
=187:29
=6.4
modus=6 & 8
median=170:2
=85
=4×7
=28
=7
yg dibawah rata rata 6.4=15 orng

maaf klo salah ✌