What does a data scientist do?
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What is the procedure to check the cumulative frequency distribution of any categorical variable?
When underfitting occurs in a static model?
Find out K most frequent numbers from a given stream of numbers on the fly.
You have two sorted array of integers, write a program to find a number from each array such that the sum of the two numbers is closest to an integer i.
Differentiate between type I and type ii error?
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 is the difference between a bagged model and a boosted model?
State the difference between the expected value and mean value?
What is the difference between data science, machine learning and artificial intelligence?
How would you do market basket analysis in r and python?
What is difference between sas, r and python programming?
What are big data and data science?
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