23. Lesson 4(DOT)3(COLON) Variance and standard deviation

Applying Lesson 4.3: Variance And Standard Deviation — Quiz

Test your understanding of applying lesson 4.3: variance and standard deviation with 5 practice questions.

Practice Questions

Question 1

What is the formula to calculate the variance ($\sigma^2$) of a population?

Question 2

Which term refers to the average of the squared differences from the mean?

Question 3

If the standard deviation of a dataset is 5, what is the variance?

Question 4

What is the standard deviation if the variance of a dataset is 64?

Question 5

Which symbol is commonly used to denote the standard deviation of a sample?