Upper Quartile Range Box And Whisker Plot. A box and whisker plot uses a number line that extends a little beyond the range for the data. The iqr can be used as a measure of how spread out the values are.
Lowest value 15. Statistics assumes that your values are clustered around some central value. A box whisker plot shows a box with left edge at q 1 right edge at q 3 the middle of the box at q 2 the median and the maximum and minimum as whiskers.
This box and whiskers plot separates the data into quarters.
If there are two values in the middle the median is the average of the two values upper quartile or third quartile. Box plots show the five number summary of a set of data. C the upper quartile is the median of the upper half of the data. Explain how to find the upper quartile of a box and whisker plot.
