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 arithmetic mean of the following numbers: 1, 3, 5?
💡 Hint: Add the numbers and divide by how many there are.
Question 2
Easy
Define grouped data.
💡 Hint: Think about data summarized in tables.
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 formula for calculating the arithmetic mean?
- A) Sum of values / Number of values
- B) Number of values / Sum of values
- C) Sum of values × Number of values
💡 Hint: Remember the basic concept of average.
Question 2
True or False: The Arithmetic Mean is sensitive to extreme values.
- True
- False
💡 Hint: Consider how values affect an average.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A community has reported the following incomes: 200, 300, 250, 400, and 500. Use the Assumed Mean Method to calculate the mean.
💡 Hint: Remember to first assume a value and calculate deviations from it.
Question 2
The following are the frequencies of students' scores in a class: 30, 25, 15, 10. Calculate a suitable mean using the Direct Method.
💡 Hint: Sum the products carefully!
Challenge and get performance evaluation