AC 120-71 - STANDARD OPERATING PROCEDURES FOR FLIGHT …

observation when the data are sorted from lowest to highest. Median The median (or 50th percentile) is the “middle number” of the sorted data values. Median = Z 50 Interquartile Range (IQR) The difference between the 75th and 25th percentiles (the 3rd and 1st quartiles). This represents the range of the middle 50% of the data. It serves as a robust measure of the variation in the data. IQR ... ................
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