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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 90 when the mean is 75 and standard deviation is 5?
💡 Hint: Use the Z-score formula: Z = (X - μ) / σ.
Question 2
Easy
If the mean is 50 and standard deviation is 10, what is the probability of scoring below the mean?
💡 Hint: Consider the properties of normal distribution.
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 in the Normal Distribution?
- Mode
- Median
- Average
💡 Hint: Consider what the term 'mean' refers to in statistics.
Question 2
Z-scores can only be positive.
- True
- False
💡 Hint: Think about how Z-scores are calculated.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given a mean of 50 and standard deviation of 5, find the probability of obtaining a score greater than 60.
💡 Hint: Calculate the Z-score and refer to the Z-table.
Question 2
Determine the range for which 95% of the data lies in a normal distribution with a mean of 200 and standard deviation of 30.
💡 Hint: Recall the Empirical Rule.
Challenge and get performance evaluation