4. The following is a set of test scores recorded from the MDM4U class. Use the following set of marks to answer all the questions in this part: 54 54 91 78 82 4 59 78 82 64 78 78 82 54 49 78 82 174 54 a. Use the original ungrouped data to answer the following: Determine the following (full marks will only be given if steps are shown): 1) The Interquartile Range (3 Marks) ii) Any outliers, if they exist. (1 Mark) b. Produce a box and whisker plot for this distribution. Label all the important sections. (2 Marks)