2.2.1 - Types of Missingness
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Practice Questions
Test your understanding with targeted questions
What does MCAR stand for?
💡 Hint: Remember the complete randomness of missing entries.
Can you give an example of MAR?
💡 Hint: Think about patterns in missing responses.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What type of missingness is MCAR?
💡 Hint: Think about whether randomness affects outcomes.
Is MAR always a major source of bias?
💡 Hint: Recall how observed data can help understand missingness.
1 more question available
Challenge Problems
Push your limits with advanced challenges
You have a dataset containing survey responses regarding financial habits. The highest earners tend to skip the income question. Identify the type of missingness and suggest a handling strategy.
💡 Hint: Refer back to definitions to identify the missingness.
In a dataset describing health outcomes, some individuals do not answer questions about their health while others do, based on their age. Identify the type of missingness and explain the remedy.
💡 Hint: Think about how observed data relates to the missing values.
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