What are the feature vectors?
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Why we need ggplot?
Explain the difference between overfitting and underfitting?
How do data scientists use statistics?
You have a bag with 6 marbles. One marble is white. You reach the bag 100 times. After taking out a marble, it is placed back in the bag. What is the probability of drawing a white marble at least once?
What is meant by lattice graphs?
There are 8 identical balls and only one of the ball is slightly heavier than the others. You are given a balance scale to find the heavier ball. What is the least number of times you have to use the balance scale to find the heavier ball?
what is the difference between extrapolation and interpolation?
Differentiate between type I and type ii error?
What is the role of the activation function?
What is logistic and linear regression? Name some packages in r and python for building regression models.
What is random forests and how is it different from decision trees?
What do you understand by parametric and non-parametric methods? Explain with examples.