How can you deal with different types of seasonality in time series modelling?
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what is prior probability and likelihood?
Suppose that American Express has 1 million card members along with their transaction details. They also have 10,000 restaurants and 1000 food coupons. Suggest a method which can be used to pass the food coupons to users given that some users have already received the food coupons so far.
Define a sql query? How do you use sql in sas, python, r languages?
A building has 100 floors. Given 2 identical eggs, how can you use them to find the threshold floor? The egg will break from any particular floor above floor N, including floor N itself.
What is market basket analysis?
What is the job of a data scientist?
Explain data munging?
How can you select k for k-means?
How can outlier values be treated?
What are the differences between overfitting and underfitting?
Differentiate between regression and classification algorithms?
How make you 3d plots/visualizations using numpy/scipy?