Range And Interquartile Range Math
These values are quartile 1 q1 and quartile 3 q3.
Range and interquartile range math. Visually the iqr is the box on a box plot. Practice finding the interquartile range iqr of a data set. 81 minus 74 is 7. The interquartile range is the range of the middle half of a set of data.
It is the difference between the upper quartile and the lower quartile. The iqr describes the middle 50 of values when ordered from lowest to highest. The iqr is the difference between q3 and q1. So the third quartile and the first quartile.
Interquartile range iqr this is the currently selected item. To find the interquartile range iqr first find the median middle value of the lower and upper half of the data. What that means is that half the middle half of the data set falls within a 7 inch range whereas the entire data set fell within a 13 inch range. Math 6th grade data and statistics interquartile range iqr interquartile range iqr interquartile range iqr practice.