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You are creating a report for user content uploads every month and observe a sudden increase in the number of upload for the month of November. The increase in uploads is particularly in image uploads. What do you think will be the cause for this and how will you test this sudden spike?
394You have a bag with 6 marbles. One marble is white. You reach the bag 100 times. After taking out a marble, it is placed back in the bag. What is the probability of drawing a white marble at least once?
308Suppose 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.
326You are given a training dataset of users that contain their demographic details, the pages on Facebook they have liked so far and results of psychology test based on their personality i.e. their openness to like FB pages or not. How will you predict the age, gender and other demographics of unseen data?
327Burn two ropes, one needs 60 minutes of time to burn and the other needs 30 minutes of time. How will you achieve this in 45 minutes of time ?
331How can you build and test a metric to compare ranked list of TV shows or Movies for two Netflix users?
556How do you take millions of users with 100's of transactions each, amongst 10000's of products and group the users together in a meaningful segments?
423Post New Data Science Questions
What do you know about autoencoders?
What is the travelling salesman problem?
Given 2 vectors, how will you generate a sorted vector?
What do you understand by the job description of data scientist?
What is logistic regression? Or state an example when you have used logistic regression recently?
Name the packages that are based on density based on the algorithm?
Can you provide an example of features extraction?
Why data cleaning plays a vital role in analysis?
What does ITER () do in Python?
Explain how to write a table to a file?
How can you decide if one algorithm is better than the other?
What is association analysis?
How do you do data import in sas?
What is the job of a data scientist?
Which package is used to do data import in r and python? How do you do data import in sas?
