Data Mining Ch 3 Pt. 1

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.

A

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.

A

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.

A

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.

A

The software package most commonly used for creating simple charts is a.Excel. b.XLMiner. c.SAS. d.R.

A

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.

B

In many cases, white space in a chart can improve a.complexity. b.readability. c.functionality. d.stability.

B

Making visual comparisons between categorical variables may be difficult in a a.scatter chart. b.pie chart. c.line chart. d.column chart.

B

__________ are visual methods of displaying data. a.Tables b.Charts c.PivotTables d.Crosstabs

B

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.

C

A _____________ is a line that provides an approximation of the relationship between the variables. a.line chart b.sparkline c.trendline d.gridline

C

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.

C

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.

C

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.

C

. Fields may be chosen to represent all of the following except ____________ in the body of a PivotTable. a.rows b.columns c.values d.filters

D

A _____________ is a graphical presentation of the relationship between two quantitative variables. a.histogram b.bar chart c.pie chart d.scatter chart

D

A time series plot is also known as a a.boxplot. b.frequency graph. c.dot plot d.line chart.

D

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.

D

Which one of the following statements is not true concerning PivotTables in Excel? a.PivotTables are also known as crosstabulation tables. b.PivotTables summarize data for two variables. c.PivotTables are interactive. d.PivotTables can be built using data arrayed in rows.

D

​ ​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

D