Exam 2: Descriptive Statistics: Tabular and Graphical Methods

A graphical portrayal of a quantitative data set that divides the data into classes and gives the frequency of each class is a(n)___________.

The sample cumulative distribution function is nondecreasing.

In a Pareto chart,the bar for the "Other" category should be placed to the far left of the chart.

A frequency table includes row and column percentages.

A ______________ shows the relationship between two variables.

A treemap graphic is a series of clustered rectangles.

Recently an advertising company called 200 people and asked them to identify the company that was in an ad running nationwide.They obtained the following results. Construct a table of column percentages.

Key performance indicators are best represented by a data discovery method.

The following is a relative frequency distribution of grades in an introductory statistics course. Construct a percent frequency bar chart for this data.

A scatter plot can be used to identify outliers.

Sparklines always need to be displayed with either their axes or coordinates.

A histogram that tails out toward smaller values is ___________.

Data drill down is a form of data discovery.

The number of weekly sales calls by a sample of 25 pharmaceutical salespersons is below.24,56,43,35,37,27,29,44,34,28,33,28,46,31,38,41,48,38,27,29,37,33,31,40,50 Construct an ogive plot.

An observation separated from the rest of the data is a(n)___________.

When developing a frequency distribution,the class (group)intervals should be ___________.

Sparklines are line charts often embedded with the text where they are being discussed.

A relative frequency curve having a long tail to the right is said to be ___________.

________ can be used to study the relationship between two variables.

A very simple graph that can be used to summarize a quantitative data set is called a(n)___________.