What is k-means? How can you select k for k-means?
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Explain principal components analysis with equations.
You have been given the data on Facebook user's friending or defriending each other. How will you determine whether a given pair of Facebook users are friends or not?
Which method in pandas.tools.plotting is used to create scatter plot matrix?
Treating a categorical variable as a continuous variable would result in a better predictive model?
How will you decide which version (Version 1 or Version 2) of the Surge Pricing Algorithms is working better for Uber ?
Can you use a generator to create iterators?
What are interpolation and extrapolation?
You are given two tables- friend_request and request_accepted. Friend_request contains requester_id, time and sent_to_id and request_accepted table contains time, acceptor_id and requestor_id. How will you determine the overall acceptance rate of requests?
Discuss normal distribution
What is logistic regression? Or state an example when you have used logistic regression recently?
Where is association analysis used?
How different is a mean value different from expected value?
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