Practice - Key Concepts
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Practice Questions
Test your understanding with targeted questions
Define the terms 'population' and 'sample'.
💡 Hint: Think of how you would collect data.
What is the mean in statistics?
💡 Hint: What do you do to find an average?
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is a population in statistics?
💡 Hint: Consider what is included in a full study.
True or False: The mode is always affected by outliers.
💡 Hint: What does mode represent?
1 more question available
Challenge Problems
Push your limits with advanced challenges
You have the following data on temperature and ice cream sales: (70, 100), (75, 150), (80, 200). Use regression to estimate sales based on temperature.
💡 Hint: Recall how to compute the slope and use given pairs.
A dataset contains 100 measurements taken from a sensor, with values mostly clustering between 50 and 60 but including outliers at 10 and 100. Calculate the mean, median, and mode.
💡 Hint: Ensure you understand how to handle outliers for accurate statistics.
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Reference links
Supplementary resources to enhance your learning experience.