How to install the ggplot2 package?
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What is the purpose of a/b testing?
A dice is rolled twice, what is the probability that on the second chance it will be a 6?
How would add new Facebook members to the database of members, and code their relationships to others in the database?
How regularly must an algorithm be updated?
What do you understand by parametric and non-parametric methods? Explain with examples.
Does the data scientist need to know programming?
Explain data preparation?
A jar has 1000 coins, of which 999 are fair and 1 is double headed. Pick a coin at random, and toss it 10 times. Given that you see 10 heads, what is the probability that the next toss of that coin is also a head?
Can you explain unsupervised learning?
What are eigenvalue and eigenvector?
Estimate the probability of a disease in a particular city given that the probability of the disease on a national level is low.
What is random forests?