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Topic: Quartile


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 [No title]
Similarly, the.75 quantile (also referred to as the 75th percentile or upper quartile) is a value such that 75% of the values of the variable fall below that value and is calculated accordingly.
The quartile (this term was first used by Galton, 1882) range of a variable is calculated as the value of the 75th percentile minus the value of the 25th percentile.
The lower and upper quartiles (this term was first used by Galton, 1882; also referred to as the.25 and.75 quantiles) are the 25th and 75th percentiles of the distribution (respectively).
www.statsoft.com /textbook/glosq.html   (2080 words)

  
  Quartile - Wikipedia, the free encyclopedia
In descriptive statistics, a quartile is any of the three values which divide the sorted data set into four equal parts, so that each part represents 1/4th of the sample or population.
The difference between the upper and lower quartiles is called the interquartile range.
Free Online Software (Calculator) computes Quartiles for any data set according to 8 different definitions.
en.wikipedia.org /wiki/Quartile   (192 words)

  
 Quartile - Wikipédia
Nyokot nilai mean sisi sejen tina kuartil ngarupakeun kaputusan teu pasti: dina conto di luhur, nilai kuartil kudu aya dina rentang [105,106], [109,110] and [112, 115].
In both of the above cases, the first and third quartiles can be taken to be the median values of the lower and upper halves of the data, respectively.
However, there is more than one school of thought on how to apply this definition when the overall median is one of the original data values.
su.wikipedia.org /wiki/Quartile   (466 words)

  
 Quartile: Tutte le informazioni su Quartile su Encyclopedia.it   (Site not responding. Last check: 2007-10-23)
Quartile: Tutte le informazioni su Quartile su Encyclopedia.it
Il primo quartile è il valore (o l’insieme di valori) di una distribuzione X per cui la frequenza cumulata vale 0,25.
Il terzo quartile è il valore (o l’insieme di valori) di una distribuzione X per cui la frequenza cumulata vale 0,75.
www.encyclopedia.it /q/qu/quartile.html   (61 words)

  
 Math Forum - Ask Dr. Math   (Site not responding. Last check: 2007-10-23)
The upper quartile is the part containing the highest data values, the upper middle quartile is the part containing the next-highest data values, the lower quartile is the part containing the lowest data values, while the lower middle quartile is the part containing the next- lowest data values.
The term 'quartiles' is sometimes used to collectively refer to these values plus the median (which is the cut-off value between the upper middle quartile subset and the lower middle quartile subset).
Furthermore, if the quartile value is not required to be a point in the data set itself, most data sets don't have a unique set of values {Q1, Q2, Q3} that divides the data into four "roughly equal" portions.
mathforum.org /library/drmath/view/60969.html   (1583 words)

  
 Statistical Brief #48: Employer-Sponsored Health Insurance Characteristics, by Average Payroll for the Private Sector, ...   (Site not responding. Last check: 2007-10-23)
The quartile with the least payroll per employee had the highest selection rate of single coverage and that with the highest payroll per employee had the lowest selection rate for single coverage.
Thus, 72.4 percent of all employees in the first payroll quartile, 88.1 percent of those in the second quartile, 95.9 percent of those in the third payroll quartile, and 97.4 percent of those in the fourth payroll quartile worked where health insurance was offered (figure 1).
Thus, among the employees at establishments that offered health insurance, in the first quartile of establishments only 55.5 percent of these employees were eligible for health insurance while 89.9 percent were eligible in the fourth quartile, which had the highest average payrolls (figure 2).
www.meps.ahrq.gov /papers/st48/stat48.htm   (1530 words)

  
 quartile - Hutchinson encyclopedia article about quartile
The difference of value between the upper and lower quartiles is known as the interquartile range, which is a useful measure of the dispersion of a statistical distribution because it is not affected by freak extreme values (see range).
From the curve, the median is 2.4 goals, the lower quartile is 1.2 goals, and the upper quartile is 3.4 goals.
The lower quartile may also be described as the 25th percentile;; the median as the 50th percentile;; and the upper quartile as the 75th percentile.
encyclopedia.farlex.com /Quartile   (231 words)

  
 Statistical Brief #25: Employer Sponsored Health Insurance - Characteristics by Average Payroll for the Private Sector ...   (Site not responding. Last check: 2007-10-23)
The highest average contributions were required of the employees in the lowest payroll quartile, and the lowest contributions were observed for employees in the highest payroll quartile.
In 2001, 72.3% of all employees in the first payroll quartile, 89.4% of those in the second payroll quartile, 96.0% of those in the third payroll quartile, and 97.9% of those in the fourth payroll quartile worked where health insurance was offered (Figure 1).
The enrollment rates for single coverage of 56.2% for the first quartile and 51.5% for the second quartile were much higher than the national average of 46.3% (Figure 4).
www.meps.ahrq.gov /papers/st25/stat25.htm   (1574 words)

  
 FPA Journal - Does Slow and Steady Win the Race? Not Quite. by Mark Riepe
For each fund we counted how many individual years of the five years (1996–2000) the fund finished in the second quartile of its group as specified at the beginning (that is, year-end 1996) as well as calculating their cumulative five-year percentile rank.
At this point we've established that the hyper-consistent funds that have managed to be second quartile for five straight years just barely turn in top quartile performance on a cumulative basis and that assumes the most aggressive adjustment for survivor bias.
As for the funds that have managed to be second quartile four of five years, we have far more of them, but even after our survivor bias adjustment, the average cumulative performance percentile rank isn't top quartile.
www.fpanet.org /journal/articles/2005_Issues/jfp0805-art2.cfm   (1353 words)

  
 Quartile Research - Home
Echo 2005 is a weekly email newsletter service, written by Quartile Research, badged with your company name and logo, with links back to your web site, which is automatically emailed to your clients every week - guaranteed!
When you subscribe to Echo 2005, you add a dedicated property research and editorial team to your business, who will keep you and your customers up-to-date on the latest property news from around the country.
For Sale: Dracula's castle (terrified villagers not included)
www.quartileresearch.com.au   (80 words)

  
 [No title]
The interquartile range is the range between the first quartile and the third quartile.
If the value is greater than the third quartile plus 1.5 x the interquartile range (IQR) or less than the first quartile minus 1.5 x the IQR it is considered a moderate outlier.
If the outlier is greater than the third quartile plus 3 x IQR or less than the first quartile minus 3 x IQR, it is considered an extreme outlier.
www.cs.indiana.edu /classes/a113-dger/fall2003/lectures/Chapter_04.doc   (2023 words)

  
 BET: Excel - Functions - QUARTILE   (Site not responding. Last check: 2007-10-23)
The number to indicate the quartile you want to return.
Quartiles often are used in sales and survey data to divide populations into groups.
This function could be used to find the top 25 percent of incomes in a population.
www.bettersolutions.com /excel/167713172024151960217221151673/167771717242419172521481151723.htm   (130 words)

  
 Welcome to Quartile Property Network   (Site not responding. Last check: 2007-10-23)
Quartile Property Network ("QPN") and it's associated businesses advise that as a Licensed Real Estate Corporation it may receive commission from vendors for the sale of property.
All investment involves risk particularly where borrowed funds are utilised and should be assessed with regard to the level of borrowings and individual financial circumstances.
Quartile Property Network is a member of the Real Estate Institute of New South Wales and subscribes to that organisations Code of Ethics.
www.quartile.com.au /termsofuse.htm   (1082 words)

  
 Quartile ranking definitions and data ranges
Quartile rankings identify the relative magnitude of variables in terms of the distribution of employment.
For example, 2004 employment and 2004 median annual earnings data were assembled for each occupation.
Data ranges for the percent part-time workers, percent unemployed workers, and median annual earnings quartiles are shown in the table below.
www.bls.gov /emp/empqrank.htm   (174 words)

  
 Algorithm Used for QUARTILE() Function
In Microsoft Excel, the QUARTILE() function returns a specified quartile in an array of numeric values.
Array is the range of values for which you want to find the quartile value.
If k is not an integer, truncate it but store the fractional portion (f) for use in step 3.
support.microsoft.com /default.aspx?scid=kb;en-us;Q103493   (290 words)

  
 QUARTILE (Microsoft Office 97 Visual Basic Programmer's Guide)
For example, you can use QUARTILE to find the top 25 percent of incomes in a population.
is the array or cell range of numeric values for which you want the quartile value.
MIN, MEDIAN, and MAX return the same value as QUARTILE when quart is equal to 0 (zero), 2, and 4, respectively.
msdn.microsoft.com /archive/en-us/office97/html/SEC24.asp?frame=true   (151 words)

  
 The Chronicle: 4/7/2006: The Rich-Poor Gap Widens for Colleges and Students
In the past 10 years, average spending on instruction per student at the wealthiest baccalaureate colleges — those in the top quartile, public and private — increased by 37 percent; at the same time, spending by those in the bottom quartile grew by only 6 percent.
By age 24, only 10 percent of students from the lowest socioeconomic quartile have earned bachelor's degrees, compared with 71 percent from those in the top quartile, says Thomas G. Mortenson, a senior scholar at the Pell Institute for the Study of Opportunity in Higher Education.
Average student-aid packages for the top quartile of families, ranked by income, more than tripled from 1990 to 2004, growing by $4,555 after adjusting for inflation.
chronicle.com /free/v52/i31/31a00101.htm   (2079 words)

  
 XL2000: Algorithm Used for QUARTILE() Function
In Microsoft Excel 2000, the QUARTILE()function returns a specified quartile in an array of numeric values.
quart = value between 0 and 4 depending on which quartile you want to find
To find the third quartile in the array of values 0,2,3,5,6,8,9, follow these steps:
support.microsoft.com /?kbid=214072   (237 words)

  
 Upper Quartile Privacy Policy
Upper Quartile respects the importance that you place on the privacy and security of your information.
This information will come to you directly from Upper Quartile and will only be done when Upper Quartile has satisfied itself that the information sent to you is for a legitimate and commercial purpose.
Also, in the unlikely event that Upper Quartile is sold or substantially all of their assets are acquired, customer information will of course be one of the transferred assets.
www.upperquartile.com.au /privacy.php   (966 words)

  
 STAT-110 Notes (Ch. 4, Sec. 4)
Note 1: The median is the second quartile (Q2) which means that the median is also the 50
Note 2: Also, the lower quartile is the median of the lower half of the data, and the upper quartile is the median of the upper half of the distribution.
The lower quartile is 2 and the upper quartile is 6.
www.stat.sc.edu /~west/courses/110/spring99/lecture/44.html   (314 words)

  
 SABR :|| Business of Baseball Committee | Investing in Bonds and Diamonds: A Study of Baseball’s Financial and ...
While decreasing somewhat in recent years, revenue has become an increasing factor in a team's on‑field competitive ability during the last eleven seasons.
· ×From 1990 to 1994, teams in the top quartile of revenue won 51.5% of their games, while teams in the bottom quartile of revenue won 47.5% of their games.
The wealthiest quartile won 56% of their games, while the poorest quartile won only 46%.
www.sabr.org /sabr.cfm?a=cms,c,750,5,0   (773 words)

  
 QUICK Update
This is an overall response rate of 5.9%, so the results must be interpreted with caution.
However, the article provides some useful benchmark data, as it provides results for the sample median and the top quartile of respondents on a number of variables:
Cash-to-cash cycle time—median 56 days; top quartile 30 days.
www.gpworldwide.com /quick/mar2004/art2.asp   (447 words)

  
 Upper quartile - Glossary - Encyclopedia - Library - VC Experts
Upper quartile - Glossary - Encyclopedia - Library - VC Experts
Location: Home > Library > Encyclopedia > Glossary > Upper quartile
An attorney-client relationship does not exist in connection with the non-legal services VC Experts provides.
vcexperts.com /vce/library/encyclopedia/glossary_view.asp?glossary_id=304   (205 words)

  
 QUARTILE Function   (Site not responding. Last check: 2007-10-23)
computes quartiles for any univariate numeric data
The QUARTILE function returns a 5 ×1 column vector for each column in the matrix.
The column vector contains the minimum, lower quartile, median, upper quartile, and maximum values for the numeric data in the specified matrix.
www.asu.edu /it/fyi/unix/helpdocs/statistics/sas/sasdoc/sashtml/iml/chap18/sect15.htm   (66 words)

  
 Fortinet-Investors
Backed by Sumitomo Corporation, one of the world's leading integrated trading and investment firms, Presidio acts as the early stage IT investment vehicle for Sumitomo Corporation and its affiliates.
Technology Associates Management Company Ltd. beginning in 1997, TAMC has achieved top quartile results for its vintage year funds in 1997, 1999 and 2000.
Overall, the firm has managed $147 million (USD) realizing nine IPOs to date with the 1997 fund achieving a 62% IRR on a 3.9x multiple, and the 1999 and 2000 funds out-performing nearly 75% of other VC funds in the respective vintage year.
www.fortinet.com /company/investors.html   (728 words)

  
 Posters   (Site not responding. Last check: 2007-10-23)
Patients were divided into four quartiles for each QLFT, stratified from best to worst function, and SVR within each quartile was determined.
The table displays SVRs from best to worst functional quartile for each test.
Significance (p value) was determined by Fishers Exact test and logistic regression.
www.hcvadvocate.org /news/reports/AASLD_2004/Posters_AASLD_2004.htm   (322 words)

  
 Quartiles - Quartiles   (Site not responding. Last check: 2007-10-23)
P, Practice with Quartiles and Percentiles, Lisa Schultzkie.
The summary for this Arabic page contains characters that cannot be correctly displayed in this language/character set.
Quartiles If we divide a cumulative frequency curve into quarters, Home > Calculating Quartiles Categories Bridger Mountain Log Homes Bridger Mountain
sales-forecasting.sitesseek.com /q/sales-forecasting-quartiles.htm   (137 words)

  
 Quartile
A statistical term describing a division of observations into four defined intervals based upon the values of the data and how they compare to the entire set of observations.
Each quartile contains 25% of the total observations.
Try not to confuse a quarter with a quartile.
www.investopedia.com /terms/q/quartile.asp   (168 words)

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