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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 data set: {2, 4, 6, 8}?
💡 Hint: Add all numbers and divide by the count.
Question 2
Easy
What does a variance of 0 signify?
💡 Hint: Think about the spread of data.
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 does a high standard deviation indicate?
- Data points are close together
- Data points are spread out
- There is no variability
💡 Hint: Think about the nature of variability.
Question 2
True or False: The square of the standard deviation is equal to the variance.
- True
- False
💡 Hint: Recall the definitions of both terms.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You have the following data set: {12, 15, 9, 20, 22}. Calculate the variance and the standard deviation.
💡 Hint: Remember the formulas for variance and take the √ to find SD.
Question 2
Analyze the following data based on gender distribution in a classroom and calculate the standard deviation: Males: 5, 4, 3, 2. Females: 4, 5, 6, 7.
💡 Hint: Understand how to treat separate groups carefully.
Challenge and get performance evaluation