3.7 - Measures of Dispersion
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Practice Questions
Test your understanding with targeted questions
Calculate the range for the dataset [10, 15, 7, 20].
💡 Hint: To find the range, subtract the smallest value from the largest value.
What does a low standard deviation tell you?
💡 Hint: Think about how closely clustered data points might be.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the formula for calculating range?
💡 Hint: Think about how you find the spread of numbers.
True or False: A higher standard deviation indicates that data is less spread out.
💡 Hint: Consider the meaning of the term 'spread out'.
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Challenge Problems
Push your limits with advanced challenges
Given the data points [5, 10, 15, 20], calculate the range, variance, and standard deviation.
💡 Hint: Break the problem down into parts: find range first, then mean for variance.
Consider a set of exam scores: [50, 75, 100, 95]. Discuss how you would assess the variability and what measures you would use.
💡 Hint: Use the steps we learned to conduct the assessment.
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