What are numpy, scipy, and spark essential datatypes?
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What is meant by sampling? Explain some sampling methods that you know?
Develop an algorithm to sort two lists of sorted integers into a single list.
How many big Macs does McDonald sell every year in US?
What is logistic and linear regression? How do you treat multicollinearity and heteroscedasticity in regression? Name some packages in r and python for building regression models.
How can you measure engagement with given Twitter data?
Explain while working on a data set, how do you select important variables?
What will be the output of runif (7)?
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.
Explain collaborative filtering
How will you drop variables using indices in a data frame?
How can you solve a problem that has no solution?
What are the key elements of the statistical graphics?