How do data management procedures like missing data handling make selection bias worse?
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Can you explain data cleansing?
You have two tables-the first table has data about the users and their friends, the second table has data about the users and the pages they have liked. Write an SQL query to make recommendations using pages that your friends liked. The query result should not recommend the pages that have already been liked by a user.
What are distance measures in R statistics?
List the variants of backpropagation?
What is the difference between supervised learning an unsupervised learning?
Define a sql query? How do you use sql in sas, python, r languages?
Differentiate between type I and type ii error?
You can roll a dice three times. You will be given $X where X is the highest roll you get. You can choose to stop rolling at any time (example, if you roll a 6 on the first roll, you can stop). What is your expected pay-out?
What are recommender systems?
Is anaconda free?
Can you cite some examples where both false positive and false negatives are equally important?
How can the outlier values be treated?
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