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2.1. Data Reduction
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12 questions on this section. Wrong answers show you what to read again.
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Revision test
Mixed questions from across the chapter. Your answers get marked.
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Flashcard drill
5 cards from this lesson. Good the night before a test.
Try these first
- 1.
What does data reduction aim to achieve?
Hint
Think about why we need to make data easier to handle.
- 2.
Name one technique used in data reduction.
Hint
Consider methods that help make data summaries.
- 3.
What is the primary goal of data reduction?
- To summarize data without losing critical information
- To increase the dataset size
- To ignore outliers
Hint
Think about what happens when data becomes too large to interpret.
- 4.
Is filtering used to improve data quality?
- True
- False
Hint
Consider what happens to data when we remove unwanted distractions.
- 5.
A researcher collects 100 measurements from a sensor. After applying an averaging technique, they found the mean strain to be 50 μstrain. Explain how this mean value could be interpreted in engineering decisions.
Hint
Think about how averages give insights into structural integrity.
- 6.
Consider a dataset with high variability. Discuss the potential effects of not applying smoothing or filtering before interpreting this data.
Hint
Reflect on how clarity can affect decision-making.
Exercises
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting
4 more questions available
Enrol freeQuiz
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting
2 more questions available
Enrol freeChallenge Problems
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting