What prior subject is required to become a data analyst?
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Why we need ggplot?
What is a z test?
What cross validation technique would you use on time series data set? Is it k-fold or loocv?
What is meant by feature vectors?
What do you understand by statistical power of sensitivity and how do you calculate it?
What does sas stand out to be the best over other data analytics tools?
Can you explain cross-validation?
Is jupyter open source?
What is Survival Analysis?
Why is data cleaning essential in data science?
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 is k-means? How can you select k for k-means?
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