How different is a mean value different from expected value?
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A box has 12 red cards and 12 black cards. Another box has 24 red cards and 24 black cards. You want to draw two cards at random from one of the two boxes, which box has a higher probability of getting cards of same colour and why?
What data structures are available in the Pandas package in Python programming language?
You are about to get on a plane to Seattle, you want to know whether you have to bring an umbrella or not. You call three of your random friends and as each one of them if it's raining. The probability that your friend is telling the truth is 2/3 and the probability that they are playing a prank on you by lying is 1/3. If all 3 of them tell that it is raining, then what is the probability that it is actually raining in Seattle.
Explain the difference between overfitting and underfitting?
What is the travelling salesman problem?
Could you explain how to define the number of clusters in a clustering algorithm?
Can you explain recommender system?
State some use cases where Hadoop MapReduce works well and where it does not.
What laptop should I buy for data science?
How is true positive rate and recall related? Write the equation.
Explain systematic sampling?
Can you define data discretization?
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