The box plot below shows the total amount of time, in minutes, the students of a class surf the Internet every day: (I've completed Part A already. It just the confusing rest,)

Part B: Calculate the interquartile range of the data, and explain in a sentence or two what it represents. (4 points)

Part C: Explain what effect, if any, there will be if an outlier is present. (2 points)