what dose quartile mean?

Answer 1

i've only heard of it becuase of math class...when making a box and whisker thing..and i forgot now that its summer sorry

Answer 2

The quartiles of a sample or population of numbers are the numbers at a quarter, half and three-quarters the way through the data when the numbers are listed in order. The number a quarter of the way through is called the 1st quartile. The number half of the way through is called the 2nd quartile and is also the median. The number three-quarters of the way through is called the 3rd quartile.

Since the 2nd quartile is also the median it is calculated exactly as the median.

While the 1st and 3rd quartile are sometime calculated differently, one method is to take the ordered list of data and break it up into 2 lists at the halfway point. If there is an odd number of data points, throw out the number in the center of the list. The 1st quartile is the median of the half list with the smaller numbers, and the 3rd quartile is the median of the half list with the larger numbers.

(Examples at the site listed below)

Answer 3

I found a couple definitions...But I only learned that in math class

4 entries found for quartile.
quar·tile ( P ) Pronunciation Key (kwôrtl, -tl)
n.
The value of the boundary at the 25th, 50th, or 75th percentiles of a frequency distribution divided into four parts, each containing a quarter of the population.


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[Middle English, 90 degrees apart (of the relative position of two celestial bodies), from Old French quartil, from Medieval Latin qurtlis, of a quartile, from Latin qurtus, fourth. See quart.]

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Source: The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2000 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.


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.

Investopedia Commentary

Each quartile contains 25% of the total observations. Generally, the data is ordered from smallest to largest with those observations falling below 25% of all the data analyzed allocated within the 1st quartile, observations falling between 25.1% and 50% and allocated in the 2nd quartile, then the observations falling between 51% and 75% allocated in the 3rd quartile, and finally the remaining observations allocated in the 4th quartile.

Try not to confuse a quarter with a quartile.

See also: Quarter


Source: Investopedia.com. Copyright © 1999-2005 - All rights reserved. Owned and Operated by Investopedia Inc.


quartile

n : (statistics) any of three points that divide an ordered distribution into four parts each containing one quarter of the scores


Source: WordNet ® 2.0, © 2003 Princeton University


quartile

quartile: in CancerWEB's On-line Medical Dictionary

Answer 4

look it up in the dictionairy