The distance (in miles) travelled by 88 vehicles were inputted into Minitab for analysis. A Stem and Leaf plot of these distances (in miles) is presented below in Figure 1. Figure 1 Stem-and-Leaf...

DISCUSSION QUESTIONS The distance (in miles) travelled by 88 vehicles were inputted into Minitab for analysis.  A Stem and Leaf plot of these distances (in miles) is presented below in Figure 1. Figure 1Stem-and-Leaf Display Leaf Unit = 10.0                  N= ?      1      0  71      12      1  82      24      2  888      3  022311    3  56719    4  0000133437    4  555555556667777888(??)  5  00011222333334436    5  5556678828    6  0000000000112344411    6  6667885      7  0002  1      7  5 (a) Calculate the missing values “?” and “??” and explain or show how you arrived at your answer. (b) Identify the minimum and the maximum values. (c) Identify the class intervals implicit in the Stem and Leaf Diagram above.  Hence develop a grouped frequency distribution, a relative frequency distribution and a cumulative frequency distribution from this display. (d) What proportion of the vehicles travelled for more than 600 miles. (e) What are the advantages of using a Stem and Leaf Plot to summarize a dataset?  (f) What are the differences between a Stem and Leaf Diagram and a Box Plot.