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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does the normal distribution represent?
💡 Hint: Think about how most values are centered.
Question 2
Easy
What are the two key parameters of the normal distribution?
💡 Hint: One is the average, and the other indicates spread.
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 type of curve does a normal distribution create?
- Bell-shaped
- Square
- Triangular
💡 Hint: Think of the common shape associated with average data.
Question 2
True or False: The Central Limit Theorem allows us to use normal distribution for sampling distributions.
- True
- False
💡 Hint: Consider when sample sizes are larger.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A study shows that the heights of adult males in a population are normally distributed with a mean of 70 inches and a standard deviation of 3 inches. What is the probability of randomly selecting a male with a height greater than 74 inches?
💡 Hint: Use the z-score to find probabilities in the standard normal distribution.
Question 2
In a manufacturing process, a product's lifespan follows a normal distribution with a mean of 2000 hours and a standard deviation of 150 hours. Determine the lifespan limits for the middle 95% of the products produced.
💡 Hint: Consider how the empirical rule applies to normal distributions.
Challenge and get performance evaluation