For people that don't know, here is how anda average your rankings.

I'll average my dancing and bernyanyi rankings...

1) Write down your rankings:
Singing
1. Jessica
2. Taeyeon
3. Tiffany
4. Sunny
5. Seohyun
6. Sooyoung
7. Yoona
8. Yuri
9. Hyoyeon

Dancing
1. Hyoyeon
2. Sooyoung
3. Yoona
4. Yuri
5. Sunny
6. Seohyun
7. Jessica
8. Taeyeon
9. Tiffany

2) Add up the ranks each member got:

Taeyeon - (2nd and 8th) 10
Jessica - (1st and 7th) 8
Sunny - (4th and 5th) 9
Tiffany - (3rd and 9th) 12
Hyoyeon - (9th and 1st) 10
Yuri - (8th and 4th) 12
Sooyoung - (6th and 2nd) 8
Yoona - (7th and 3rd) 10
Seohyun - (5th and 6th) 11

3) (Optional) To get a smaller number, divide oleh the number of rankings anda averaged (in this case 2)

Taeyeon - 5
Jessica - 4
Sunny - 4.5
Tiffany - 6
Hyoyeon - 5
Yuri - 6
Sooyoung - 4
Yoona - 5
Seohyun - 5.5

4) Then organize them from lowest to highest number :)

1. Jessica and Sooyoung
2. Sunny
3. Taeyeon, Hyoyeon, and Yoona
4. Seohyun
5. Tiffany and Yuri