What is cross-validation?
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while working on a data set, how can you select important variables? Explain
Name the packages that are based on density based on the algorithm?
What is association analysis?
You are given a training dataset of users that contain their demographic details, the pages on Facebook they have liked so far and results of psychology test based on their personality i.e. their openness to like FB pages or not. How will you predict the age, gender and other demographics of unseen data?
A certain couple tells you that they have two children, at least one of whom is a girl. What is the probability that they have two girls?
Treating a categorical variable as a continuous variable would result in a better predictive model?
Explain reinforcement learning.
Describe some assumptions considered important for linear regression?
What is linear optimization? Where is it used?
What is the procedure to check the cumulative frequency distribution of any categorical variable?
What is selection bias and why does it matter?
Define the term cross-validation
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