Difference between logit and probit models.
Data Scientist Senior Interview Questions
40,258 data scientist senior interview questions shared by candidates
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 verify that a catalog mailed to customers has been well-received?
What are different Time Series forecasting techniques? Explain PCA with equations? How to solve Multicollinearity? What algorithm you would use to solve driver accepting a requesting? Which supervised algorithm you would pick to solve the above problem? How do you compare the results of the algorithm? Coding question on patients arriving at hospital and doctor attending the patients
Pseudo-code verbal: print 1 through 100, and for every number that's divisible by 2 print A, for every number that's divisible by 5 print B, and for every number that's divisible by 2 and 5 print AB
find the avg of a list. data mining
How to deal with outlier value?
How would you measure the “feed” success? (What KPIs)
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