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January 30th, 2009, 05:41 PM   #1
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How to find the percentiles for certain data point?

How to find the percentiles for certain data point?
I have two data points that I need to find the percentiles for. One is data point 3 and the other one is data point 5. Data point 5 is the Q3, so it is 75 percentile.. but I don't know how to find data point 3.

The 5-summary is:
Min = 1
Q1 = 2
Med = 3.5
Q3 = 5
Max = 6

Is there any other information I need to find the percentile for data point 3? I read the textbook but can't find relevant information on solving this problem. Please help. Thanks in advance.
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February 8th, 2009, 10:36 AM   #2
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Re: How to find the percentiles for certain data point?

With out more data the closest you can get is between 25% and 50%.
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