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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Calculate the mean of the following data set: 4, 5, 6.
💡 Hint: Add all numbers together and divide by the count.
Question 2
Easy
Find the mean of these temperatures: 15, 20, 25.
💡 Hint: Use the same method: sum and divide.
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 mean?
- Mean = sum/n
- Mean = n/sum
- Mean = sum × n
💡 Hint: Remember the structure of the formula.
Question 2
True or False: The mean is always the value that occurs most frequently in a data set.
- True
- False
💡 Hint: Think about definitions of different averages.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A dataset has 100 values, all at 50. What is the mean?
Now, if one value is changed to 100, what would the new mean be?
💡 Hint: Carefully add up the total value before recalculating.
Question 2
If the scores of five students are 70, 80, 90, 100, and x, and their average is 85, find the value of x.
💡 Hint: Set up an equation to find x.
Challenge and get performance evaluation