4. Statistics and Probability
Calculations With Normal Distribution — Quiz
Test your understanding of calculations with normal distribution with 5 practice questions.
Practice Questions
Question 1
In a normal distribution, what does the mean represent?
Question 2
A variable $X$ is normally distributed with mean $50$ and standard deviation $10$. What is the value of the standardized score $z$ for $X = 70$?
Question 3
Which statement best describes the total area under a normal curve?
Question 4
If a value lies far to the right of the mean on a normal curve, what is true about its standardized score?
Question 5
A normal distribution has mean $100$ and standard deviation $15$. Which interval contains the central $68\%$ of the data approximately?