Question 1
What is the formula for calculating the sample variance?
Question 2
If a dataset has a variance of 64, what is its standard deviation?
Question 3
Consider a dataset with values $3, 7, 7, 19. What is the sample variance?
Question 4
What does a high variance indicate about a dataset?
Question 5
Which of the following statements is true regarding the relationship between variance and standard deviation?