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

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Question 1

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What is the management feature of a dashboard?

A) operational data that identify what actions to take to resolve a problem
B) summarized dimensional data to analyze the root cause of problems
C) summarized dimensional data to monitor key performance metrics
D) graphical,abstracted data to monitor key performance metrics

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Question 2

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In the Dallas Cowboys case study,the focus was on using data analytics to decide which players would play every week.

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Question 3

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Nominal data represent the labels of multiple classes used to divide a variable into specific groups.

When you tell a story in a presentation,all of the following are true EXCEPT

Which type of visualization tool can be very helpful when a data set contains location data?

Visual analytics is aimed at answering,"What is it happening?" and is usually associated with business analytics.

Data is the main ingredient for any BI,data science,and business analytics initiative.

Dashboards can be presented at all the following levels EXCEPT

________ series forecasting is the use of mathematical modeling to predict future values of the variable of interest based on previously observed values.

Which characteristic of data means that all the required data elements are included in the data set?

This measure of dispersion is calculated by simply taking the square root of the variations.

Information dashboards enable ________ operations that allow the users to view underlying data sources and obtain more detail.

Benefits of the latest visual analytics tools,such as SAS Visual Analytics,include all of the following EXCEPT

Descriptive statistics is all about describing the sample data on hand.

Data source reliability means that data are correct and are a good match for the analytics problem.

Predictive algorithms generally require a flat file with a target variable,so making data analytics ready for prediction means that data sets must be transformed into a flat-file format and made ready for ingestion into those predictive algorithms.

List five types of specialized charts and graphs.

Which of the following is LEAST related to data/information visualization?

To respond to its market challenges,SiriusXM decided to focus on manufacturing efficiency.

Describe categorical and nominal data.