Which technique will you use to compare the performance of two back-end engines that generate automatic friend recommendations on Facebook?
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What is the differences between univariate, bivariate and multivariate analysis?
Which method in pandas.tools.plotting is used to create scatter plot matrix?
Name some kinds of graphs and explain how you would build them in python or r.
what is prior probability and likelihood?
What are the important skills to have in python with regard to data analysis?
What do you understand by normal distribution?
What is the difference between an iterator, generator and list comprehension in Python?
If you had to choose between the programming languages r and python, which one would you use for text 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.
What are the metrics you will use to track if Uber's paid advertising strategies to acquire customers work? How will you figure out the acceptable cost of customer acquisition?
What is the difference between Stack and Queue
How long does it take to become a data scientist?