quartiles

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Statistics which divide the observations in a numeric sample into 4 intervals, each containing 25% of the data The lower, middle, and upper quartiles are computed by ordering the data from smallest to largest and then finding the values below which fall 25%, 50%, and 75% of the data The middle quartile is usually called the median Quartiles are special cases of percentiles The lower quartile, median, and upper quartile are the same as the 25th, 50th, and 75th percentiles Box and whisker plots provide a graphical summary of a data sample in terms of its quartiles Upper and lower quartiles are calculated in the One Variable Analysis procedure
The points which break the distribution into fourths
Three values that divide the total frequency of a set of data into four equal parts The central value is called the median and the other two are called the upper and lower quartiles, respectively
The 25th, 50th, and 75th percentiles, referred to as the first quartile, the second quartile (median), and third quartile, respectively The quartiles can be used to divide the data set into four parts, with each part containing approximately 25% of the data
There are several definitions used to calculate quartiles, which will result in different values, especially for small data sets But this entry is included to stress that present usage defines quartiles as values (cutoffs), not ranges There is no fourth quartile, a person in the top fourth of the class is above the third quartile, not in the fourth quartile Data is above, below, or at a quartile, not in a quartile
the quartiles mark out the middle half of the data The first quartile lies one quarter of the way up the list, and is thus larger than 25% of the observations The third quartile lies three-quarters of the way up the list, and is thus larger than 75% of the observations The second quartile is the median, which is larger than 50% of the observations
There are four quartiles within each floating bar, and each is broken into a 25% tier, totaling 100% The upper or first quartile indicates the top 25% of the managers in your universe with the second quartile representing the next 25%, and so on
Scores that divide all the scores into four quarters One fourth of the data values are equal to less than the first or lower quartile (Q1), one half of the values are equal to or less than the 2nd quartile (Q2, also known as the median), and three fourths of all the data values are equal to or less than the third or upper quartile (Q3)
May be used to divide the scale of measurement into 4 larger units The first quartile is the same as the 25th percentile
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İlgili Terimler

upper quartiles
plural form of upper quartile