Question 1 Not yet answered Points out of 2.00 P Flag question Most colleges admit students based on their achievements in a number of different areas. The grade obtained in senior level English (A, B, C, D, or F) is an example of a_ _variable. Select one: Oa. Discrete Ob. Ratio scale variable Oc. Categorical Question 2 Not yet answered Points out of 2.00 P Flag question A type of vertical bar chart in which the categories are plotted in the descending rank order of the magnitude of their frequencies is called a Select one: Oa. Pareto Chart Ob. Stem-and-leaf display Oc Contingency Table Question 3 Not yet answered Points out of 2.00 P Flag question The following are the duration in minutes of a sample of long-distance phone calls made within the continental United States reported by one long-distance carrier. Relative Time (in Minutes) Frequency 0 but less than 5 0.37 5 but less than 10 0.22 10 but less than 15 0.15 15 but less than 20 0.10 20 but less than 25 0.07 25 but less than 30 0.07 30 or more 0.02 Referring to the Table what is the width of each class? Select one: Ca. 1 minute Ob. 5 minutes Oc. 10 minutes