Discover what quartiles are in statistics, how to calculate them, and see examples to help you interpret data more effectively. Learn about lower, median, and upper quartiles.

The interquartile range shows the range in values of the central 50% of the data. To find the interquartile range, subtract the value of the lower quartile Q1 from the value of the upper quartile ...

GCSE OCR Analysing data - OCR Range In statistics there are three types of average: the mean, the median and the mode. Measures of spread such as the range and the interquartile range can be used ...

The draft recommendations provide that the data points between the fortieth and sixtieth percentile should be considered for the range.