10x.4 - Properties
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Practice Questions
Test your understanding with targeted questions
What is the non-negativity property of variance?
💡 Hint: What happens when you square a number?
Explain the impact of an outlier on standard deviation.
💡 Hint: What does an extreme value in the dataset do?
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the minimum value of variance?
💡 Hint: Think about squaring numbers.
True or False: Standard deviation can be negative.
💡 Hint: What does that square root do?
1 more question available
Challenge Problems
Push your limits with advanced challenges
Given the data set {5, 6, 8, 10, 15}, calculate the variance. Discuss the role a high value (15) plays in your computation.
💡 Hint: Make sure to calculate the squared differences.
You have two morphological measurements of a model, both with variances of 25. If you scale one by a factor of -4, what is the new variance, and what does it signify?
💡 Hint: Remember how to apply the scaling rule to variance.
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