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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the Z-score for a value of 50 with a mean of 50 and a standard deviation of 10?
π‘ Hint: Think about how many standard deviations away it is from the mean.
Question 2
Easy
If X = 60, ΞΌ = 50, and Ο = 5, what is the Z-score?
π‘ Hint: Subtract the mean and then divide by the standard deviation.
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 mean of the Standard Normal Distribution?
- 0
- 1
- Any real number
π‘ Hint: Remember, all values are standardized!
Question 2
True or False: The standard deviation of the Standard Normal Distribution is 1.
- True
- False
π‘ Hint: Think about the standardization process!
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A distribution has ΞΌ = 100 and Ο = 15. Calculate the Z-score for a value of 130 and the associated probability.
π‘ Hint: Start with the Z-score formula, then use the table to find the area.
Question 2
In a sample of test scores with ΞΌ = 50 and Ο = 5, what is the probability that a score is lower than 48?
π‘ Hint: Know how to interpret the negative Z-scores in the table.
Challenge and get performance evaluation