The meaning of INTERQUARTILE RANGE is the range of values of the variable in a statistical distribution that lies between the upper and lower quartiles.
In order to understand the interquartile range definition, we need to understand what the median of a distribution is. The median is a measure of center for quantitative variables. It describes the middle of a distribution. That is, the median is the value in a distribution such that there ...
Both IQR and Q do a better job than the range in describing the dispersion of data. The IQR of 2.0 from the second distribution of math scores (from a 100-point scale) indicates that there is not much variation in math performance for the middle 50% of students. In comparison, an IQR...
Define interquartile range. interquartile range synonyms, interquartile range pronunciation, interquartile range translation, English dictionary definition of interquartile range. n statistics the difference between the value of a variable below which li
Interquartile range definition: the range of values of a frequency distribution between the first and third quartiles. . See examples of INTERQUARTILE RANGE used in a sentence.
Psychology definition for Interquartile Range in normal everyday language, edited by psychologists, professors and leading students. Help us get better.
Recommended Lessons and Courses for You Related Lessons Related Courses Interquartile Range | Definition, Formula & Examples Range | Study.com ACT® Math Test Prep Understanding Statistical Variability Comparing Center & Variability Measurements of Two Data Sets ...
The interquartile range equals126−50=76. 1.5×76=114. Therefore, in order for a number to be an upper outlier, it must be greater than this. Since126exceeds114, it is an outlier. Practice Problems The first quartile of a data set is49, the median is65, and the third quartile is...
四分位距(interquartile range, IQR)。是描述統計學中的一種方法,以確定第三四分位數和第一四分位數的分別(即 {Q1和Q3的差距)。與變異數、標準差一樣,表示統計資料中各變量分散情形,但四分差更多為一種穩健統計(robust statistic)。 我實際舉例發現有四種狀況(數值陣列:6、7、8、9): ...
The interquartile range (IQR) rule is useful in detecting the presence of outliers.Outliersare individual values that fall outside of the overall pattern of a data set. The definition of an outlier is somewhat vague and subjective, so it is helpful to have a rule to apply when determining ...