Data Visualization Answers

Data Visualization Multiple Choice 1. Data-ink is the ink used in a table or chart that a. does not help in conveying the data to the audience. b. helps in presenting data when the audience need not know exact values. c. is necessary to convey the meaning of the data to the audience. d. increases the non-data-ink ratio. 2. Deleting the grid lines in a table and the horizontal lines in a chart a. increases the data-ink ratio. b. decreases the data-ink ratio. c. increases the non-data-ink ratio. d. does not affect the data-ink ratio. 3. In many cases, white space in a chart can improve a. complexity. b. readability. c. functionality. d. stability, 4. Tables should be used instead of charts when a. the reader needs relative comparisons of data. b. there are more than two columns of data.. c. the values being displayed have different units or very different magnitudes. d. the reader need not differentiate the columns and rows. 5. Which one of the following statements is not true concerning Pivot Tables in Excel? a. Pivot Tables are also known as crosstabulation tables. b. Pivot Tables summarize data for two variables. c. PivotTables are interactive. d. Pivot Tables can be built using data arrayed in rows. 6. Fields may be chosen to represent all of the following except in the body of a Pivot Table. a. rows b. columns c. values d. filters 7. A is a graphical presentation of the relationship between two quantitative variables. a. histogra m b, bar chart c. pie chart d. seatter chart 8 are visual methods of displaying data. a. Tables b. Charts c. PivotTables d. Crosstabs Data Visualization 9. The software package most commonly used for creating simple charts is a. Excel. b. XLMiner. C. SAS d. R. 10. A is a line that provides an approximation of the relationship between the variables. a. line chart. b. sparkline c. trendline d. gridline 11. The following image is a 200 Aug Sep Oct a. sparkline. b. trendline. c. gridline. d. line chart. 12. DJ needs to display data over time. Which of the following charts should he use? a. Scatter chart b. Pie chart c. Bar chart d. Line chart 13. A time series plot is also known as a a. boxplot. b. frequency graph. c. dot plot d. line chart. 14. A line chart that has no axes but is used to provide information on overall trends for time series data is called a a. time series plot. b. sparkline. c. trendline. d. bubble chart. 15. The charts that are helpful in making comparisons between categorical variables are a. bar charts and scatter charts. b. scatter charts and line charts, c. bar charts and column charts. d. column charts and line charts. Data Visualization 16. Bar charts use a. horizontal bars to display the magnitude of the quantitative variable. b. vertical bars to display the magnitude of the quantitative variable. c. horizontal and vertical bars to display the magnitude of the quantitative variable. d. vertical bars to display the magnitude of the categorical variable. 17. Making visual comparisons between categorical variables may be difficult in a a. scatter chart. b. pie chart. c. line chart. d. column chart. 18. Using multiple lines on a line chart or employing multiple charts is an alternative to a a. column chart. b. line chart. c. two-dimensional graph. d. three-dimensional chart. 19. A chart that is recommended as an alternative to a pie chart is a a, bar chart. b. line chart. c. stacked column chart. d. box plot. 20. In order to visualize three variables in a two-dimensional graph, we use a a. 2-D chart. b. 3-D chart. c. bubble chart. d. column chart. 21. A two-dimensional graph representing the data using different shades of color to indicate magnitude is called a a. heat map. b. bubble chart. c. column chart. d. pie chart. 22. To avoid problems in interpreting the differences in color in a heat map, can be added. a. a bubble chart b. a pie chart c. a scatter chart d. sparklines 23. An effective display of trend and magnitude is achieved by using a combination of a a. time series plot and sparklines. b. line chart and trendlines. c. heat map and sparklines. d. bubble chart and trendlines.