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When creating a presentation for a technical audience, what is the main objective?
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Based on the graphic, what should be done to begin addressing chart junk?
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What are challenges presented by Big Data?
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Which term is used to describe separating a database into separate parts that can be processed in parallel?
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Siehe dazu die Abbildung.

You are building a decision tree. In this exhibit, four variables are listed with their respective values of info-gain. Based on this information, on which attribute would you expect the next split to be in the decision tree?
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Which word or phrase completes the statement? Business Intelligence is to monitoring trends as Data Science is to ________ trends.
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What does a leaf node represent in a decision tree?
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Consider a database with 4 transactions:
Transaction 1: {cheese, bread, milk}
Transaction 2: {soda, bread, milk}
Transaction 3: {cheese, bread}
Transaction 4: {cheese, soda, juice}
You decide to run the association rules algorithm where minimum support is 50%. Which rule has a confidence at least 50%?
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You have numeric data for more than 500 observations. You are interested in identifying linear relationships among these numeric variables. Which R function should you employ to get the best visualization?
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How is HDFS defined?
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Which word or phrase completes the statement? A spreadsheet is to a data island as a centralized database for reporting is to a __________?
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What is the primary function of the NameNode in Hadoop?
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When would you use a Wilcoxson Rank Sum test?
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What is a core deliverable at the end of the analytic project?
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Consider these itemsets:
(hat, scarf, coat)
(hat, scarf, coat, gloves)
(hat, scarf, gloves)
(hat, gloves)
(scarf, coat, gloves)
What is the confidence of the rule (hat, scarf) => gloves?
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What are considerations in a data science and Big Data analytics project?
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