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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the 70th percentile if the mean is 50 and standard deviation is 10? (Z-score = 0.524)
💡 Hint: Use the formula x = μ + zσ.
Question 2
Easy
Which percentile represents the median?
💡 Hint: Think about where half the data falls.
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 the 100th percentile represent?
- The highest score
- The lowest score
- The average score
💡 Hint: Think about what it means to cover all data.
Question 2
True or False: A value in the 25th percentile is better than 25% of the values.
- True
- False
💡 Hint: Revisit the definition of percentiles again.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
In a set of data with a mean of 60 and a standard deviation of 15, if the 95th percentile is calculated, what percentage of data lies above this value?
💡 Hint: Remember the nature of percentiles when calculating above and below.
Question 2
If a data set has a 25th percentile of 50 and a 75th percentile of 85, what does this indicate about the distribution?
💡 Hint: Reflect on what the quartiles represent in the context of distribution.
Challenge and get performance evaluation