https://www.khanacademy.org/math/ap-statistics/summarizing-quantitative-data-ap/measuring-spread-quantitative/v/calculating-interquartile-range-iqr

The IQR describes the middle 50% of values when ordered from lowest to highest. To find the interquartile range (IQR), ​first find the median (middle value) of ...

https://www.statisticshowto.datasciencecentral.com/probability-and-statistics/interquartile-range/

Meaning, use and how to find an interquartile range in statistics by hand or using technology. Hundreds of articles and videos. Free homework help forum.

https://www.statisticshowto.datasciencecentral.com/calculators/interquartile-range-calculator/

The calculator then subtracts the 75th percentile from the 25th percentile to find the interquartile range using the formula Q3 – Q1 = IQR. Just type your numbers ...

https://www.varsitytutors.com/algebra_1-help/how-to-find-interquartile-range

In order to calculate the IQR, we need to begin by ordering the values of the data set from the least to the greatest. Likewise, in order to calculate the median, we ...

https://www.youtube.com/watch?v=lDJXwxloxNY

Jul 16, 2016 ... This video demonstrates a method for calculating the Inter-Quartile Range of a Frequency Distribution table.

https://math.stackexchange.com/questions/2666104/interquartile-range-from-frequency-table

R gives the interquartile range (IQR) as 7−2.5=4.5, but Minitab's method gets 5.25, and I think you would get 5 using yet other methods.

https://stattrek.com/statistics/dictionary.aspx?definition=interquartile%20range

Definition of interquartile range, from the Stat Trek dictionary of statistical terms and ... To see a definition, select a term from the dropdown text box below.

http://www.alcula.com/calculators/statistics/interquartile-range/

Interquartile Range Calculator. Instructions. This calculator calculates the interquartile range from a data set: To calculate the interquartile range from a set of ...

http://sphweb.bumc.bu.edu/otlt/mph-modules/bs/bs704_summarizingdata/bs704_summarizingdata7.html

May 17, 2016 ... Figure 9 - Interquartile Range with Even Sample Size ... The same approach is used in the upper half to determine the third quartile ((77+81)/2=79). ... Table 13 displays the means, standard deviations, medians, quartiles and ...

https://www.hackmath.net/en/calculator/interquartile-range

IQR calculator. IQR Calc calculate Interquartile Range from set of entered numerical data. ... How to enter data as frequency table? Simple. First-type data ...