Interested to Buy Any Domain ? << Click Here >> for more details...
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?
359You 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?
277Suppose 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.
298You 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?
300Burn 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 ?
303How can you build and test a metric to compare ranked list of TV shows or Movies for two Netflix users?
526How 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?
401Post New Data Science Questions
How will you impute missing information in a dataset?
What is machine learning and how can it be used for time series analysis?
State some use cases where Hadoop MapReduce works well and where it does not.
What is the difference between “long” and “wide” format data?
What is column storage? What is a document database?
What are interpolation and extrapolation?
What is data science? How would you say it is similar or different to business analytics and business intelligence?
What is the difference between skewed and uniform distribution?
What is the job of analytics?
What is meant by binomial distribution?
Name some packages in r and python for building regression models.
What are the various types of selection bias?
How do data scientists use statistics?
What is a data science job?
How does data cleaning plays a vital role in the analysis?
