Exam 2: Descriptive Statistics: Tabular and Graphical Methods

Row or column percentages can be found in

A bullet graph features a single measure as either a horizontal or vertical bar.

When constructing any graphical display that utilizes categorical data,classes that have frequencies of 5 percent or less are usually combined together into a single category.

Which one of the following graphical tools is used with quantitative data?

Which of the following graphs is for qualitative data?

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 row percentages.

A local electronics retailer recently conducted a study on purchasers of large screen televisions.The study recorded the type of television and the credit account balance of the customer at the time of purchase.They obtained the following results. Construct a table of column percentages.

Leaves on a stem-and-leaf display should be rearranged so that they are in increasing order from left to right.

Which of the following graphical tools is not used to study the shapes of distributions?

The following is a relative frequency distribution of grades in an introductory statistics course. If we wish to depict these data using a pie chart,find how many degrees (out of 360 degrees)should be assigned to each grade.

Gauges feature a single measure showing variation over time.

A runs plot is a form of scatter plot.

A flaw possessed by a population or sample unit is ___________.

The number of items rejected daily by a manufacturer because of defects for the last 30 days are: 20,21,8,17,22,19,18,19,14,17,11,6,21,25,4,19,9,12,16,16,10,28,24,6,21,20,25,5,17,8 Construct an ogive plot.

As a business owner,I have requested my staff to develop a set of dashboards that can be used by the public to show wait time at each of my four local coffee shops at peak times during the day and whether the time is short,medium,or long.Which of the following graphical displays would be the best choice?

If there are 120 values in a data set,how many classes should be created for a frequency histogram?

The following table lists the types of customer complaint calls on satellite TV service during the first two months after installation. Construct a Pareto chart.

A(n)_____________ is a graphical presentation of the current status and historical trends of a business's key performance indicators.

Which of the following is not a graphical tool for descriptive analytics (dashboards)?

A _____________ displays the frequency of each group with qualitative data and a _____________ displays the frequency of each group with quantitative data.