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4 cards from this section. Quick, good the night before a test.
What does data science involve?
Think of what skills a data scientist would need.
Name one core area of data science.
Recall the specific steps mentioned earlier.
What is the definition of data science?
Think about the skills and knowledge areas included.
True or False: Data cleaning is optional in data science.
Consider how you would feel about using bad data.
Design an exploratory data analysis approach for a dataset containing customer purchase histories. Include at least three visualizations you would create and explain why each is important.
Think about how each visualization helps answer critical business questions.
Given a dataset with missing values and outliers, outline a strategy you would use for data cleaning before analysis. Include at least three specific techniques.
Consider standard practices in data cleaning.
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