When presented with a box plot, it is better to identify the 5 numbers that are important in the box plot.
5 number summary of the boxplot. 1) minimum number - 16 2) 1st quartile - 21 3) 2nd quartile or median - 26 4) 3rd quartile - 29 5) maximum number - 34
Range is the difference of the maximum value from the minimum value of the data set. Interquartile range is the difference of the 3rd quartile from the 1st quartile.
You DON'T want a graph to be intersected by a vertical line more than once. It's called the vertical line test and is VERY useful. If it can only be intersected once, it IS A FUNCTION.
