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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is two-sided probability?
💡 Hint: Think about both sides of the mean.
Question 2
Easy
How do you calculate Z-score?
💡 Hint: Z-score tells you how far and in what direction a point is from 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 does two-sided probability measure?
- Only values above the mean
- Values within a certain range around the mean
- Total probabilities of values
💡 Hint: Focus on the range aspect.
Question 2
True or False: The empirical rule states that 95% of values lie within two standard deviations of the mean.
- True
- False
💡 Hint: Recall the empirical rule percentages.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You are testing a new teaching method, and the test scores are normally distributed with μ = 75 and σ = 10. Calculate the two-sided probability for scores between 70 and 80.
💡 Hint: Don't forget to reference the Z-table for probabilities.
Question 2
An IQ test is normally distributed with μ = 100 and σ = 15. Find the probability of scoring between 85 and 115.
💡 Hint: Refer to the empirical rule to check your work.
Challenge and get performance evaluation