The data set shows how many points Mark scored in each basketball game he played this season.1.4, 4.5, 5, 7, 8, 8, 10, 11, 11, 11, 14, 15, 16The box plot shown is a summary of the data,

To make a box plot we have to display the five number summary of a data set, that means, first quartile, median, third quartile, and maximum. We draw a box from the first quartile to the third quartile, and a vertical line goes through the box and the median.
In this case: