Practice Data Reduction - 4.3.2.4 | 4. Acquiring Data, Processing, and Interpreting Data | CBSE Class 9 AI (Artificial Intelligence)
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Define data reduction.

💡 Hint: Think about why reducing data size could be useful.

Question 2

Easy

What is sampling?

💡 Hint: Consider how one can represent a larger group with fewer items.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What does data reduction aim to achieve?

  • Increase data size
  • Minimize data volume
  • Make data more complex

💡 Hint: Think about data processing and its efficiency.

Question 2

True or False: Dimensionality reduction can help prevent overfitting in AI models.

  • True
  • False

💡 Hint: Remember why we simplify datasets.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

You have a dataset of 10,000 customer reviews. How would you apply sampling to gain insights while minimizing data size?

💡 Hint: Consider methods like stratified sampling for more accuracy.

Question 2

Explain a situation where choosing between sampling and dimensionality reduction is necessary. What factors would you consider?

💡 Hint: Focus on the type of data and the desired outcome.

Challenge and get performance evaluation