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

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

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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.

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

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

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

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

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Describe categorical and nominal data.

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

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

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

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

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

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List five types of specialized charts and graphs.

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Dashboards can be presented at all the following levels EXCEPT

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

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

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

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What is the management feature of a dashboard?

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

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