Define linear regression?
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What are the steps involved in analytics projects?
Can you write the formula to calculate r-square?
What do you understand by confusion matrix?
Can you explain systematic sampling?
Can you provide an example of features extraction?
Define analytics?
You have two tables-the first table has data about the users and their friends, the second table has data about the users and the pages they have liked. Write an SQL query to make recommendations using pages that your friends liked. The query result should not recommend the pages that have already been liked by a user.
How will you decide whether a customer will buy a product today or not given the income of the customer, location where the customer lives, profession and gender? Define a machine learning algorithm for this.
How will you test that there is increased probability of a user to stay active after 6 months given that a user has more friends now?
What are the drawbacks of the linear model?
What are numpy, scipy, and spark essential datatypes?
How can you produce co-relations and covariances?
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