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Data Scientists Interview Questions
54,235 data scientists interview questions shared by candidates
You are playing a coin game between yourself and an opponent on a round table. The object is to place coins one after another until the table is filled with a single layer of coins. Would you go first or second and why?
How would you go about formulating the problem of predictive maintenance on an aircraft?
Previous works and projects
Difference between logit and probit models.
I cannot reveal the questions I got asked. But here's some that has very similar flavor: 1) Check if an integer is a palindrome (do not convert the integer to string) 2) Given 2 sorted arrays of integers, code to find a number from each array such that their sum are closest to some integer K? 3) What is the degree of freedom for lasso?
Why is the sum of squares error used?
You have a function which gets k as input and in o(1) time returns a random number between 1 to k. Create a function that returns a random permutation (a list of the numbers 1 to n in a random order), optimize for speed (I think O(n) is best).
How might you determine if the size of a specific item is a significant feature in determining the customer's calculated propensity to buy it?
How to deal with outlier value?
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