Practice - Calculation of Correlation Coefficient
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Practice Questions
Test your understanding with targeted questions
Define the correlation coefficient.
💡 Hint: Think about how it helps in understanding relationships.
What is the range of values for the correlation coefficient?
💡 Hint: Remember: extremes give you information about positive and negative relationships.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does a correlation coefficient of +1 indicate?
💡 Hint: Think about how the two variables move together.
True or False: A correlation coefficient can ever be greater than 1.
💡 Hint: Recall the definition of how correlation works.
1 more question available
Challenge Problems
Push your limits with advanced challenges
You are given the following data about weekly hours of exercise and the pounds lost over a month: Hours: [2, 3, 4, 5], Pounds Lost: [1, 1.5, 3, 4]. Calculate the correlation coefficient and explain its significance.
💡 Hint: Keep your calculations organized for better clarity.
Given a set of grouped data for height (in cm) and average scores in mathematics, how would you calculate the correlation coefficient, and what factors would affect your analysis?
💡 Hint: Consider how the frequencies are represented and calculated!
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