5.1 - Normal Distribution
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What is a normal distribution?
💡 Hint: Think about the bell-shaped curve.
What does the 68-95-99.7 rule state?
💡 Hint: Remember how much data is around the mean.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the shape of a normal distribution curve?
💡 Hint: Think of how it appears on a graph.
In a normal distribution, the mean, median, and mode are?
💡 Hint: Consider the properties of the distribution.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
Given a normal distribution with a mean of 50 and a standard deviation of 5, calculate the probability of a data point being less than 55.
💡 Hint: Use the Z-score formula and Z-table to find your answer.
In an experiment, the height of plants is normally distributed with a mean of 30 inches and a standard deviation of 6 inches. If you want to find the height threshold for the top 10% tallest plants, what Z-score do you need and what height corresponds to this Z-score?
💡 Hint: Look up the Z-score for the top 10% and apply it correctly.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.