How are window functions different from regular aggregate functions?

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?

In the MapReduce framework, what is the purpose of the Map Function?

You have completed your model and are handing it off to be deployed in production. What should
you deliver to the production team, along with your commented code?

While having a discussion with your colleague, this person mentions that they want to perform Kmeans clustering on text file data stored in HDFS.
Which tool would you recommend to this colleague?

Which method is used to solve for coefficients b0, b1, .., bn in your linear regression model :
Y = b0 + b1x1+b2x2+….+bnxn

What describes a true limitation of Logistic Regression method?

You submit a MapReduce job to a Hadoop cluster and notice that although the job was
successfully submitted, it is not completing. What should you do?

A disk drive manufacturer has a defect rate of less than 1.5% with 98% confidence. A quality
assurance team samples 1000 disk drives and finds 14 defective units. Which action should the
team recommend?

What is a core deliverable at the end of the analytic project?