Practice Random Errors - 11.1.3.1 | Chapter 11: Measurement and Data Processing | IB Grade 12-Chemistry
K12 Students

Academics

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

Professionals

Professional Courses

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

Games

Interactive Games

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

11.1.3.1 - Random Errors

Enroll to start learning

You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.

Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Define random errors.

💡 Hint: Think about what can cause different results in repeated measurements.

Question 2

Easy

What is the difference between accuracy and precision?

💡 Hint: Consider an archery analogy.

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 type of error is characterized by unpredictable variations in measurements?

  • Systematic error
  • Random error
  • Human error

💡 Hint: This error type prevents exact replication of results.

Question 2

True or False: Random errors can be completely eliminated.

  • True
  • False

💡 Hint: Consider the sources of unpredictability.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

You measure the same liquid five times with results: 25.1 mL, 25.3 mL, 25.2 mL, 25.0 mL, and 25.4 mL. Calculate the average and discuss the random error present.

💡 Hint: Use the formula for the mean to find out the average value.

Question 2

If the standard deviation of your repeated measurements is 0.2 mL for a liquid, explain what this tells you about the random error.

💡 Hint: Consider what standard deviation says about the spread of your data.

Challenge and get performance evaluation