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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Calculate the range of the following dataset: {5, 10, 15, 20, 25}.
💡 Hint: Subtract the minimum value from the maximum value.
Question 2
Easy
What does a higher variance indicate?
💡 Hint: Think about how variance is calculated.
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 variance?
- A measure of spread calculated by the sum of deviations from the mean.
- The square root of the average squared differences from the mean.
- A simple difference between max and min values.
💡 Hint: Think about how variance reflects overall data variability.
Question 2
True or False: Standard deviation is always larger than range.
- True
- False
💡 Hint: Consider the definitions of both terms.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A dataset has these values: {15, 22, 17, 30, 25}. Calculate the variance and standard deviation.
💡 Hint: Start with calculating the mean before proceeding with the deviation.
Question 2
Explain how changing a single score in a dataset from 20 to 50 will affect the range, variance, and standard deviation.
💡 Hint: Consider the implications of extremes on spread.
Challenge and get performance evaluation