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Ndidiamaka
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9 Posts

Posted - 11/11/2010 :  00:54:04  Show Profile  Reply with Quote
How can i split students into "quintiles" then calculate the scores like (top 20%, next 20%, middle 20%, next 20%, bottom 20%)the table looks like this;

id stdname score
--- ------- -----
1 ad 80
2 os 20
3 yu 35
4 ed 05
5 ik 19
6 yl 68
7 lp 44
8 sc 52
9 pl 17
10 mo 77
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