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Data Sciences Interview Questions
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1. What is a sql join 2. Is it possible for a left join to give the same result as an inner join, if yes, how 3. What is sql where,having statement 4. Whats a union, diff between union and join 5. How would you determine if a coin is fair if it gives 55 heads on 100 tosses The interview ended with a sql question; had to write a query about some lame open ended analytical situation.
talk about your interests; difference between method and function in Python (example: A is a list A.sorted or sort(A)) how many joins we have and define each one (inner, outer, left outer, right outer, full join) what are the 5 constraints in SQL and how are they useful? -ask me a question
Machine Learning Algorithms experience. How I solved the problems I faced in Data Science so far.
Tell me about a time when you faced some xyz challenge as a student?
Difference between Union and Union All
If a distribution has a long right tail, then generally, is the mean or media higher? They also had a "mini" case study where they were piloting a credit card program, and it was my job on the spot to determine whether they could offer the rewards program.
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Python - Leetcode arrays problem
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