2.8 - Analyze raw observational data using statistical measures (mean, range) and critically discuss methodological limitations.
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Practice Questions
Test your understanding with targeted questions
Calculate the mean of the following data: 5, 10, 15.
💡 Hint: Add the numbers together and divide by how many there are.
What is the range of the set: 3, 7, 2, 9?
💡 Hint: Find the difference between the highest and lowest numbers.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the mean of the following set: 10, 20, 30?
💡 Hint: Add the numbers and divide by 3.
True or False: The range can be negative.
💡 Hint: Consider what the range represents.
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Challenge Problems
Push your limits with advanced challenges
A researcher collects temperature data over a week: 20°C, 22°C, 25°C, 30°C, and 18°C. Calculate the mean and range, and discuss any methodological biases that could arise.
💡 Hint: Consider how data collection time affects average temperature calculations.
Given a sampled set of results: 10, 15, 20, 100, how would the mean differ from the median? Calculate both, and discuss the impact of an outlier.
💡 Hint: Think about how each measure of central tendency treats extreme values differently.
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