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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What characterizes a lognormal distribution?
💡 Hint: Consider how the logarithm relates to normality.
Question 2
Easy
Give an example where lognormal distribution can be applied.
💡 Hint: Think of variables that cannot be negative.
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 a defining characteristic of a lognormal distribution?
- The mean is normally distributed
- The natural log of the variable is normally distributed
- It has negative values
💡 Hint: Think about what makes lognormal unique.
Question 2
A lognormal distribution can take negative values.
- True
- False
💡 Hint: Recall the definition.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A company claims that their product's lifetime follows a lognormal distribution. The average lifetime of their products is 10 years, and the coefficient of variation is 0.4. What does this imply about the distribution?
💡 Hint: Consider what a high coefficient of variation indicates.
Question 2
If you are given a dataset and want to test if it is lognormally distributed, explain the process you'd use.
💡 Hint: Focus on statistical tests for normality.
Challenge and get performance evaluation