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 ____________.
	5. ______________ 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.
	9. ________ 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.

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