zerodivide1
Name:
Location:
Web:
21 Qs, 2 As, 0 FYIs
0 in zerodivide1's Qniverse
Question
If I know the value of something @ the 50th percentile, how can I figure out the percentile of something else? How about
Join or Log In to answer.
Say, if 200 ppl have written an exam and u'v got 99 percentile, that means there are 198 people who have scored less marks than you
-duos (0Q / 732A)
Sun Aug 24, 2008 7:01pm
-duos (0Q / 732A)
Sun Aug 24, 2008 7:01pm
For Nth percentile, we first calculate desired portion of total no.of observations. coz N is defined as percentage, we divide by 100 to get actual fraction of total number of observations:
N / 100
-Camargue (0Q / 192A)
Sun Aug 24, 2008 7:03pm
N / 100
-Camargue (0Q / 192A)
Sun Aug 24, 2008 7:03pm
Then, we multiply by the total number of observations to find the number of observations that make up the actual portion of observations within the specified percentile:
N / 100 * COUNT(*)
for more info
http://tinyurl.com/5nmaoe
-Camargue (0Q / 192A)
Sun Aug 24, 2008 7:04pm
N / 100 * COUNT(*)
for more info
http://tinyurl.com/5nmaoe
-Camargue (0Q / 192A)
Sun Aug 24, 2008 7:04pm
Is it possible to figure out the percentile without knowing the number of observations? For example, I have a value of 5 at the 50th percentile, but I want to know what percentile the value 4.25 belongs to. How would that be done?
-zerodivide1 (21Q / 2A)
Mon Aug 25, 2008 8:08am
-zerodivide1 (21Q / 2A)
Mon Aug 25, 2008 8:08am
