1.3.5 - Data Cleaning and Analysis
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Practice Questions
Test your understanding with targeted questions
What does data cleaning involve?
💡 Hint: Think about ensuring the data is accurate.
Name one technique used in descriptive statistics.
💡 Hint: Consider what summarizes data.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the first step in preparing data for analysis?
💡 Hint: Consider what you do with unverified information.
True or False: Descriptive statistics can only be used for quantitative data.
💡 Hint: Think about whether categories can be summarized too.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
Given a dataset collected from a user survey with numerous missing answers and outliers, outline a comprehensive approach to prepare this data for analysis.
💡 Hint: Consider the integrity of the data during your cleaning process.
Using a correlation analysis technique, hypothesize how user engagement might influence app satisfaction. What data points would you include, and how would you measure correlation?
💡 Hint: Think about engagement metrics you can gather from your app.
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