Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
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.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the Principle of Least Squares?
💡 Hint: Think about the errors in your measurements.
Question 2
Easy
Why do we weight observations?
💡 Hint: Consider the accuracy of different sources of data.
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 the main goal of the Principle of Least Squares?
- To maximize residuals
- To minimize residuals
- To equalize residuals
💡 Hint: Focus on what the method optimizes.
Question 2
True or False: We assign weights to observations based on their reliability.
- True
- False
💡 Hint: Think about why some measurements are trusted more than others.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
If a set of observations yields the following residuals: [-2, 3, 1], calculate the total sum of the squared residuals and explain why this is significant for adjustments.
💡 Hint: Recall how squaring helps in error calculations.
Question 2
A geospatial study consists of observations with variances: 1, 2, and 4. If you find that the high variance observations may mislead, how would you adjust them?
💡 Hint: Consider why variance matters in weighting.
Challenge and get performance evaluation