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In which lifecycle stage are appropriate analytical techniques determined?
In which lifecycle stage are appropriate analytical techniques determined?A . Model planningB . Model buildingC . Data preparationD . DiscoveryView AnswerAnswer: A
Which tool should be used for the preliminary analysis?
You received 100,000 home loan records and want to quickly determine if there is any correlation between mortgage age and mortgage amount before conducting advanced analysis. Which tool should be used for the preliminary analysis?A . Scatter plotB . Stacked Bar chartC . Box and Whisker plotD . HistogramView AnswerAnswer:...
How is HDFS defined?
How is HDFS defined?A . Large “web table” capable of holding millions of rows and millions of columnsB . Row-column oriented datastore supporting redundancy and high availabilityC . Reliable, redundant distributed file systemD . Reliable file system stored on a single extensible storage platformView AnswerAnswer: C
Which activity is performed in the Operationalize phase of the data analytics lifecycle?
Which activity is performed in the Operationalize phase of the data analytics lifecycle?A . Try different variablesB . Try different analytical techniquesC . Assess the benefitsD . Transform existing variablesView AnswerAnswer: C
What does R code nv <- v[v < 1000] do?
What does R code nv <- v[v < 1000] do?A . Selects the values in vector v that are less than 1000 and assigns them to the vector nvB . Sets nv to TRUE or FALSE depending on whether all elements of vector v are less than 1000C . Removes...
What will be your approach for loading data into the analytical sandbox for this analysis?
Consider the example of an analysis for fraud detection on credit card usage. You will need to ensure higher-risk transactions that may indicate fraudulent credit card activity are retained in your data for analysis, and not dropped as outliers during pre-processing. What will be your approach for loading data into...
What is another component?
Trend, seasonal, and cyclical are components of a time series. What is another component?A . IrregularB . LinearC . QuadraticD . ExponentialView AnswerAnswer: A
When is a Wilcoxon Rank-Sum test used?
When is a Wilcoxon Rank-Sum test used?A . When an assumption about the distribution of the populations cannot be madeB . When the data can be easily sortedC . When the populations represent the sums of other valuesD . When the data cannot be easily sortedView AnswerAnswer: A
If the minimum support is 50%, what represents the complete list of frequent 2-itemsets?
Consider the following itemsets: (hat, scarf, coat) (hat, scarf, coat, gloves) (hat, scarf, gloves) (hat, gloves) (scarf, coat, gloves) If the minimum support is 50%, what represents the complete list of frequent 2-itemsets?A . (hat, scarf), (hat, gloves)B . (hat, scarf), (scarf, coat), (coat, gloves)C . (scarf, gloves), (scarf, coat)...
What is a distinct property of Logistic Regression compared with Linear Regression?
What is a distinct property of Logistic Regression compared with Linear Regression?A . Logistic Regression handles missing values wellB . Logistic Regression is robust with redundant or correlated variablesC . Logistic Regression returns probability estimates of an eventD . Logistic Regression works well with discrete variables that have many distinct...
