You 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?

0 Answers   American Express,

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What do you understand by Ordinary Least Squares Linear Regression?

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You are given 50 cards with five different colors- 10 Green cards, 10 Red Cards, 10 Orange Cards, 10 Blue cards, and 10 Yellow cards. The cards of each colors are numbered from one to ten. Two cards are picked at random. Find out the probability that the cards picked are not of same number and same color.

0 Answers   Facebook,

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Define naive bayes?

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Who can be scientific data there are three general steps to becoming a data scientist?

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What is the difference between “long” and “wide” format data?

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Why do you need a for loop? How do you do for loops in python and r?

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Explain principal components analysis with equations.

0 Answers   Uber,

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What prior subject is required to become data analyst?

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Compare sas, r, python, perl?

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What is churn? How would it help predict and control churn for a customer?

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What is meant by Random Forest Classifier?

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