What are the major skills data scientist need?
In k-means or knn, we use euclidean distance to calculate the distance between nearest neighbors. Why not manhattan distance?
Can you explain cross-validation?
Can you explain data cleansing?
What is the difference between an analyst and a data scientist?
What do you understand by type I vs type ii error?
Can you explain supervised learning?
How do you understand by bias variance trade off?
Can you explain data munging or data wrangling?
What is difference between sas, r and python programming?
Can you define feature vector?
What is data scientist?
What is the advantage of performing dimensionality reduction before fitting an svm?
How is true positive rate and recall related? Write the equation.
Can you define data discretization?
