10.x.5 - Examples
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Practice Questions
Test your understanding with targeted questions
What is the mean of the dataset {10, 12, 8}?
💡 Hint: Add the numbers and divide by how many there are.
If variance is 4, what is the standard deviation?
💡 Hint: Remember: SD = √Variance.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the formula for calculating variance?
💡 Hint: Think about the differences from the average.
True or False: A lower standard deviation indicates that data points are widely spread out.
💡 Hint: What does 'spread out' mean in this context?
1 more question available
Challenge Problems
Push your limits with advanced challenges
Given the dataset {5, 9, 4, 2, 1}, calculate the mean, variance, and standard deviation.
💡 Hint: Make sure to perform each calculation step by step.
Discuss how the presence of outliers can skew both the variance and the standard deviation in a set of data.
💡 Hint: Think about extreme values and their impact on average measures.
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Reference links
Supplementary resources to enhance your learning experience.