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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a normal distribution?
💡 Hint: Think about the bell-shaped curve.
Question 2
Easy
What does the 68-95-99.7 rule state?
💡 Hint: Remember how much data is around the mean.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the shape of a normal distribution curve?
- Square
- Bell-shaped
- Triangle
💡 Hint: Think of how it appears on a graph.
Question 2
In a normal distribution, the mean, median, and mode are?
- True
- False
💡 Hint: Consider the properties of the distribution.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
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.
Question 2
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.
Challenge and get performance evaluation