Exam 2: Descriptive Analytics I: Nature of Data,statistical Modeling,

Which type of question does visual analytics seeks to answer?

One of SiriusXM's challenges was tracking potential customers when cars were sold.

According to Eckerson (2006),a well-known expert on BI dashboards,what are the three layers of information of a dashboard?

________ plots are often used to explore the relationship between two or three variables (in 2-D or 2-D visuals).

Due to the ________ expansion of information technology coupled with the need for improved competitiveness in business,there has been an increase in the use of computing power to produce unified reports that join different views of the enterprise in one place.

________ charts are a special case of horizontal bar charts that are used to portray project timelines,project tasks/activity durations,and overlap among the tasks/activities.

Visual analytics is widely regarded as the combination of visualization and ________ analytics.

Describe the difference between descriptive and inferential statistics.

In the FEMA case study,the BureauNet software was the primary reason behind the increased speed and relevance of the reports FEMA employees received.

With a dashboard,information on sources of the data being presented,the quality and currency of underlying data provide contextual ________ for users.

Which type of visualization tool can be very helpful when the intention is to show relative proportions of dollars per department allocated by a university administration?

Data accessibility means that the data are easily and readily obtainable.

This plot is a graphical illustration of several descriptive statistics about a given data set.

When telling a story during a presentation,it is best to avoid describing hurdles that your character must overcome,to avoid souring the mood.

List and describe the three major categories of business reports.

This measure of central tendency is the sum of all the values/observations divided by the number of observations in the data set.

This technique makes no a priori assumption of whether one variable is dependent on the other(s)and is not concerned with the relationship between variables; instead it gives an estimate on the degree of association between the variables.

When validating the assumptions of a regression,________ assumes that the relationship between the response variable and the explanatory variables are linear.

________ statistics is about drawing conclusions about the characteristics of the population.

________ are typically used together with other charts and graphs,as opposed to by themselves,and show postal codes,country names,etc.