- third quartile
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(in a frequency distribution) the largest quartile; the 75th percentile; the value of the variable below which three quarters of the elements are located.
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Universalium. 2010.
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Universalium. 2010.
third quartile — (in a frequency distribution) the largest quartile; the 75th percentile; the value of the variable below which three quarters of the elements are located … Useful english dictionary
Quartile — 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 one fourth of the sampled population. Definitions * first quartile (designated Q1) = lower… … Wikipedia
quartile deviation — noun : one half of the difference obtained by subtracting the first quartile from the third quartile in a frequency distribution * * * quartile deviation noun (statistics) The distance between the values below which the lowest fourth and above… … Useful english dictionary
quartile — /kwawr tuyl, til/, n. 1. Statistics. (in a frequency distribution) one of the values of a variable that divides the distribution of the variable into four groups having equal frequencies. Cf. first quartile, median, third quartile. 2. Astrol. a… … Universalium
quartile — The argument of the cumulative distribution function corresponding to a probability of either 1/4 (first or lower quartile) or 3/4 (third or upper quartile); (of a sample) the value below which occurs a quarter (first or lower quartile) or three… … Dictionary of automotive terms
Quartile coefficient of dispersion — In statistics, the quartile coefficient of dispersion is a descriptive statistic used to make comparisons within and between data sets. The statistic is easily computed using the first ( Q 1) and third ( Q 3) quartiles for each data set. Consider … Wikipedia
Box plot — In descriptive statistics, a boxplot (also known as a box and whisker diagram or plot) is a convenient way of graphically depicting groups of numerical data through their five number summaries (the smallest observation, lower quartile (Q1),… … Wikipedia
Quantile — Quantiles are points taken at regular intervals from the cumulative distribution function of a random variable. Dividing ordered data into q essentially equal sized data subsets is the motivation for q quantiles; the quantiles are the data values … Wikipedia
Seven-number summary — In descriptive statistics, the seven number summary is a collection of seven summary statistics, and is a modification or extension of the five number summary. There are two common forms.(Parametric) Seven number summaryThe following numbers are… … Wikipedia
Interquartile range — In descriptive statistics, the interquartile range (IQR), also called the midspread, middle fifty and middle of the #s, is a measure of statistical dispersion, being equal to the difference between the third and first quartiles.Unlike the (total) … Wikipedia