![]() ![]() We use an interquartile range to avoid outliers. Also, the maximum part of the data exists within the interquartile range. What do we use the interquartile range for? Taking the first half of the data, 1, 2, 3.48, 49, 50 we can find the first quartile value.įirst Quartile = \(Q_1 = \dfrac\] 8. Listing the first 100 natural numbers, we have 1, 2, 3. Peter wants to know the interquartile range of the set of the first 100 whole n umbers. How can you help Peter? 2) Click on the 'Calculate' button to calculate the. 1) Enter each of the numbers in your set separated by a comma (e.g., 1,9,11,59,77), space (e.g., 1 9 11 59 77) or line break. \(\therefore \) The interquartile range is 28 You can use this interquartile range calculator to determine the interquartile range of a set of numbers, including the first quartile, third quartile, and median. Quartiles are the partitioned values that divide the whole series into 4 equal parts. ![]() Interquartile range = \(Q_3 - Q_1 = 71 - 43 = 28 \) The interquartile range defines the difference between the third and the first quartile. Sometimes people will group the minimum and the maximum along with the Quartiles in what is called the '5 Number. Data sets can be compared using averages, box plots, the interquartile range and standard deviation. The smallest of all the measures of dispersion in statistics is called the Interquartile Range. National 5 Comparing data sets using statistics Interquartile range. ![]() The Inter-Quartile Range is quite literally just the range of the quartiles: the distance from the largest quartile to the smallest quartile, which is IQRQ3-Q1. The Interquartile Range (IQR) formula is a measure of the middle 50 of a data set. George finds the first quartile and the third quartile values of the data to be 43 and 71 re spectively. How can you further help George to find the interquartile range for this data? The range is the distance from the highest value to the lowest value. ![]()
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