In a box plot, it is easy to see the range of where 50% of your data lies. Let’s examine this a little further by describing the interquartile range. Quartiles can be defined as dividing your ...

The box plot shows the marks in a science test for a group of students. What is the range of the data? What is the lower quartile? Calculate the interquartile range of the data. The top 25% of the ...