Find The Interquartile Range. How To Find the Interquartile Range IQR In SPSS - YouTube. It is expressed as IQR Q 3 - Q 1. Q1 is the value below which 25 percent of the distribution lies while Q3 is the value below which 75 percent of the distribution lies. Google Classroom Facebook Twitter.
The IQR is the difference between Q3 and Q1. It represents the range from the 25 th percentile to the 75 th percentile. Q1 is the middle value in the first half of the rank-ordered data set. To obtain a measure of variation based on the five-number summary of a statistical sample you can find whats called the interquartile range or IQR. It is calculated as the difference between the first quartile the 25th percentile and the third quartile the 75th percentile of a dataset. How to find an interquartile range - YouTube.
It represents the range from the 25 th percentile to the 75 th percentile.
The interquartile range is the range of the middle half 50 of the data. In other words we can say that it represents the middle 50 percent of a data series. Interquartile Range Quartile 3 Quartile 1. Q1 is the middle value in the first half of the data set. In statistical dispersion Interquartile range IQR is the measurement of difference between the third and the first quartiles. We can find the interquartile range or IQR in four simple steps.