Ragam data 4,6,5,8,7,9,7,10
Rata-rata = 56/8
= 7
maka
I 4 – 8 I² = 4² = 16
I 6 – 8 I² = 2² = 4
I 5 – 8 I² = 3² = 9
I 8 – 8 I² = 0² = 0
2I 7-8 I² = 2 × 1² = 2
I 9 – 8 I² = 1² = 1
I 10-8 I² = 2² = 4
jumlahnya = 36
ragam
4,5,6,7,7,8,9,10
maaf kalau salah