How do you work towards a random forest?
How do you use goal seek in excel?
What is overfitting?
How would you say data science is similar or different to business analytics and business intelligence?
What are essential skills and training needed in data Science?
Where linear optimization is used?
How will you impute missing information in a dataset?
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.
Why do you want to work at this company as a data scientist?
How can you deal with different types of seasonality in time series modelling?
What is systematic sampling?
A test has a true positive rate of 100% and false positive rate of 5%. There is a population with a 1/1000 rate of having the condition the test identifies. Considering a positive test, what is the probability of having that condition?
What are the metrics you will use to track if Uber's paid advertising strategies to acquire customers work? How will you figure out the acceptable cost of customer acquisition?
How to solve multi-collinearity?
What is the difference between select and update query?
