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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the mean of the scores 10, 20, and 30?
💡 Hint: Add the numbers together and divide by how many values there are.
Question 2
Easy
If a dataset has the numbers 5, 15, and 10, what is the mean?
💡 Hint: Remember to sum all the numbers and divide by 3.
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 formula is used to calculate the mean?
💡 Hint: Think about how you first learned to find averages.
Question 2
True or False: An outlier can significantly affect the mean of a dataset.
💡 Hint: Consider how extreme values compare to normal ones.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You have the following scores: 50, 60, 70, 80, and 90. If you add 30 as an outlier, how does it affect the mean? Calculate both.
💡 Hint: Calculate each scenario separately to see the impact.
Question 2
A group of children have the following heights (in cm): 110, 112, 114, 116, and 120. Then an adult height of 180 cm is added. Discuss the impact on the mean.
💡 Hint: Sum all heights, then divide by the new total count.
Challenge and get performance evaluation