What is LOESS used for?

Which word or phrase completes the statement? Mahout is to Hadoop as MADlib is to ____________ .

In linear regression modeling, which action can be taken to improve the linearity of the relationship between the
dependent and independent variables?

Data visualization is used in the final presentation of an analytics project. For what else is this technique
commonly used?

You have been assigned to do a study of the daily revenue effect of a pricing model of online transactions. All
the data currently available to you has been loadedinto your analytics database; revenue data, pricing data,
and online transaction data. You find that all the data comes in different levels of granularity. The transaction
data has timestamps (day, hour, minutes, seconds), pricing is stored at the daily level, and revenue data is only
reported monthly. What is your next step?

Which SQL OLAP extension provides all possible grouping combinations?

What is the primary bottleneck in text classification?

Which characteristic applies only to Business Intelligence as opposed to Data Science?

You have been assigned to run a linear regression model for each of 5, 000 distinct districts, and allthe data is
currently stored in a PostgreSQL database. Which tool/library would you use to produce these models with the
least effort?

Your customer provided you with 2, 000 unlabeled records and asked you to separate them into three groups.
What is the correct analytical method to use?