28.2 - Elements of Statistics
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Practice Questions
Test your understanding with targeted questions
What is the mean of the following numbers: 10, 15, 20?
💡 Hint: Add the numbers and divide by how many there are.
True or False: A positive skew indicates that the tail is on the left side.
💡 Hint: Think about which direction a longer tail indicates.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the mean represent?
💡 Hint: Consider how you would find the center of data.
True or False: Skewness can affect how we interpret data distributions.
💡 Hint: Reflect on how uneven data distributions can change conclusions.
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Challenge Problems
Push your limits with advanced challenges
You have collected the following data: 5, 7, 7, 8, 10, 12, 12, 12, 13, 15. Calculate the mean, standard deviation, skewness, and kurtosis.
💡 Hint: Use the formulas discussed for each calculation step.
Explain how understanding skewness and kurtosis can impact the structural reliability evaluation process.
💡 Hint: Reflect on their importance in data analysis methodologies.
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