SESSIONAL EXERCISE SHEET COMM 291 Name Date Score Answer Questions 1. True or False: Histograms displaying continuous data have gaps between their bars. 2. True or False: Bar charts can display data either horizontally or vertically. 3. True or False: The summary table cross tabulates or tallies jointly the responses of two categorical variables. 4. In Pareto Chart the bar graph and line graph project a separation of the "vital few" from the are an excellent tool for comparing proportions for qualitative (categorical) data. 6. True or False: The dependent variable on scatter plots is placed on the horizontal axis on the graph. 7. True or False: A data set is known as a times series when each data point is associated with a specific point in time. 8. A is a table that shows the number of data observations that fall into specific intervals. display the proportion of observations of each class relative to the total number of observations. 10. Which of the following is not a rule for constructing a frequency distribution using grouped quantitative data? A. Use equal-size classes. B. Use mutually exclusive classes C. Avoid empty classes. D. Avoid close-ended classes