What are Random Forests?

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Can you explain difference between data modeling and database design?

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Create a program in a language of your choice to read a text file with various tweets. The output should be 2 text files-one that contains the list of all unique words among all tweets along with the count for repeated words and the second file should contain the medium number of unique words for all tweets.

0 Answers   Insight,

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How has your prior experience prepared you for a role in data science?

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How can you compute an inverse matrix faster by playing with some computation tricks?

0 Answers   Microsoft,

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Write a function to extract the first name from the string?

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Can you explain supervised learning?

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In any 15-minute interval, there is a 20% probability that you will see at least one shooting star. What is the proba­bility that you see at least one shooting star in the period of an hour?

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What are the important skills to have in python with regard to data analysis?

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There are 8 identical balls and only one of the ball is slightly heavier than the others. You are given a balance scale to find the heavier ball. What is the least number of times you have to use the balance scale to find the heavier ball?

0 Answers   Goldman Sachs,

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What are Principal components?

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What is linear optimization?

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