Practice SAMPLING AND NON-SAMPLING ERRORS - 2.7 | 2. Collection of Data | CBSE 11 Statistics for Economics
K12 Students

Academics

AI-Powered learning for Grades 8–12, aligned with major Indian and international curricula.

Academics
Professionals

Professional Courses

Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.

Professional Courses
Games

Interactive Games

Fun, engaging games to boost memory, math fluency, typing speed, and English skillsβ€”perfect for learners of all ages.

games

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Define primary data.

πŸ’‘ Hint: Think about how this data is collected.

Question 2

Easy

What is a census?

πŸ’‘ Hint: It involves complete enumeration.

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 is primary data?

  • Data collected by others
  • Data collected firsthand
  • Data that is obsolete

πŸ’‘ Hint: Focus on who collects the data.

Question 2

True or False: A census collects data from only a portion of the population.

  • True
  • False

πŸ’‘ Hint: Think about the purpose of a census.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Design a survey on a local community issue. List potential sampling errors and how you would mitigate them.

πŸ’‘ Hint: Reflect on the population diversity.

Question 2

Evaluate a past census data set for its reliability. What non-sampling errors might arise from it?

πŸ’‘ Hint: Consider the methodology and follow-ups.

Challenge and get performance evaluation