The owner of a restaurant wants to find out more about where his patrons are coming from. One day he decided to gather data about the distance (in miles) that people commuted to get to his restaurant. People reported the following distances traveled: 14, 6, 3, 2, 4, 15, 11, 8, 1, 7, 2, 1, 3, 4, 10, 22, 20 He wants to create a graph that helps him understand the spread of distances (and the median distance) that people travel. a) What kind of graph should he create and why? b) Create the graph and indicate all its features. c) Measure the skewness on the spread of distance and interpret your result d) What is the difference between cluster sampling method and stratified sampling method? Which one is more practical than theoretical?