4. Statistics and Probability

Normal Distribution — Quiz

Test your understanding of normal distribution with 5 practice questions.

Practice Questions

Question 1

Which statement best describes a normal distribution?

Question 2

In a normal distribution, what is true about the mean, median, and mode?

Question 3

A standard normal distribution has mean $0$ and standard deviation $1$. What is its $z$-score for a value equal to the mean?

Question 4

If a data set follows a normal distribution, what does the Empirical Rule say about the proportion of data within $1$ standard deviation of the mean?

Question 5

What is the area under the entire curve of a normal distribution?