5.2.1.1 - Arithmetic Mean for Ungrouped Data
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
What is the arithmetic mean of the following values: 5, 10, 15?
💡 Hint: Sum all the values and divide by the count.
Given observations are 12, 15, 20, calculate the mean.
💡 Hint: Add the numbers and divide by how many there are.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the formula for arithmetic mean?
💡 Hint: Think about how averages are typically found!
True or False: The arithmetic mean can be significantly affected by extreme values.
💡 Hint: Consider examples where large numbers skew averages.
Get performance evaluation
Challenge Problems
Push your limits with advanced challenges
Suppose the scores from a completed math test are: 78, 85, 91, 76, and 88. If a new score of 95 is added, how does it affect the mean?
💡 Hint: How do you think a higher score affects the average?
You have the incomes of several households ranging from 2000 to 5000. One household earns 15000. Discuss the potential impact of this outlier on the arithmetic mean.
💡 Hint: Consider why extreme values skew average results.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.