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4 articles trouvés pour ce sujet.
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Percentiles |
2012-10-17 |
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Kenneth pose la question :
Question from Kenneth:
Hello:
What is a common calculation used to determine percentiles?
For example, five employees have the following salaries:
Office worker 1 - $25,000
Office worker 2 - $27,000
Office worker 3 - $30,000
Office worker 4 - $32,000
Office worker 5 - $35,000
What is the percentile rank of office worker 3 who earns $30,000?
Here's what I know: Add the number of salaries. Total: 5
Add the smallest number of salaries less than $30,000. There are two.
Now, divide 2 by 5 and multiply by 100. 2/5 * 100 = 40
I think the office worker making $30,000 is in the 40th percentile.
and I'm not sure what this ranking indicates.
I thank you for any helpful reply and or different calculation.
Harley Weston lui répond. |
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Why use percentiles? |
2011-04-29 |
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Kenneth pose la question :
I need some clarification regarding the word "percentile."
Here is an example and what I know: If an investor had twenty stocks in his portfolio and five of those stocks paid an annual dividend of $200.00 or more, the five stocks are in the 25 percentile.
Why is this word necessary? If my example and explanation is correct, why not simply indicate that 25% of his stocks paid an annual dividend of $200.00 or more?
Penny Nom lui répond. |
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Percentiles |
2009-03-21 |
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Shawn pose la question :
For a normal distribution of u=654.00 and o=138.00.
What is the percentile rank for X=426?
Harley Weston lui répond. |
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Percentiles |
2004-08-15 |
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Gary pose la question :
Table 1
Selected percentiles for family income in the US in 1992
1 $1,300
10 $10,200
25 $20,100
50 $36,800
75 $58,100
90 $85,000
99 $151,800
Q. The percentage of families in Table 1 with incomes below $58,100 was about?
Penny Nom lui répond. |
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