 |
| Gb. Grafik Distribusi |
STUDI KASUS
KELAS | x | Distribusi I | Distribusi II | Distribusi III | |||||||||
f | U | fU | fU2 | f | U | fU | fU2 | f | U | fU | fU2 | ||
5-9 | 7 | 2 | -2 | -4 | 8 | 5 | -2 | -10 | 20 | 6 | -3 | -13 | 54 |
10-14 | 12 | 16 | -1 | -16 | 16 | 10 | -1 | -10 | 10 | 10 | -2 | -20 | 40 |
15-19 | 17 | 14 | 0 | 0 | 0 | 15 | 0 | 0 | 0 | 12 | -1 | -12 | 12 |
20-24 | 22 | 12 | 1 | 12 | 12 | 15 | 1 | 15 | 15 | 14 | 0 | 0 | 0 |
25-29 | 27 | 10 | 2 | 20 | 40 | 10 | 2 | 20 | 40 | 16 | 1 | 16 | 16 |
30-34 | 32 | 6 | 3 | 18 | 54 | 5 | 3 | 15 | 45 | 2 | 2 | 4 | 8 |
Jumlah | 60 | 3 | 30 | 130 | 60 | 3 | 30 | 130 | 60 | -3 | -30 | 130 | |
- Hitunglah Mean, Median dan Standar Deviasi dari ke 3 distribusi frekuensi diatas!
- Buatlah masing-masing grafik dari ke 3 distribusi diatas!
PENYELESAIAN
1) Mean, Median, Standar Deviasi
1) Mean, Median, Standar Deviasi
2) Adapun Grafiknya, sebagaimana ditunjukan pada Gb.Grafik Distribusi di atas.