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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 dataset {10, 12, 8}?
💡 Hint: Add the numbers and divide by how many there are.
Question 2
Easy
If variance is 4, what is the standard deviation?
💡 Hint: Remember: SD = √Variance.
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 the formula for calculating variance?
💡 Hint: Think about the differences from the average.
Question 2
True or False: A lower standard deviation indicates that data points are widely spread out.
- True
- False
💡 Hint: What does 'spread out' mean in this context?
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
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.
Question 2
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.
Challenge and get performance evaluation