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 does covariance measure?
💡 Hint: Think about whether they increase or decrease together.
Question 2
Easy
What is the correlation coefficient range?
💡 Hint: Consider the extreme values it can take.
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 a positive covariance indicate?
- Variables increase together
- Variables decrease together
- No relationship
💡 Hint: Think about how both variables interact.
Question 2
The correlation coefficient can only be found between which two values?
- -1 and 0
- 0 and 1
- -1 and 1
💡 Hint: Recall the extremes of correlation.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Consider two datasets: A = {10, 20, 30, 40, 50} and B = {5, 15, 25, 35, 40}. Calculate the covariance and correlation. Discuss their implications.
💡 Hint: Don't forget to calculate means first and standard deviations while solving.
Question 2
You are analyzing the height and weight of a sample of plants. The covariance between height and weight is found to be positive. What does this suggest about their relationship, and how might environmental factors play a role?
💡 Hint: Consider the biological growth environments that affect both height and weight.
Challenge and get performance evaluation