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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define correlation in your own words.
💡 Hint: Think about how changes in one variable affect another.
Question 2
Easy
What does a scatter diagram represent?
💡 Hint: Consider what happens when you plot data points.
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 a positive correlation imply?
- A: Both variables go up together.
- B: One variable goes up while the other goes down.
- C: There is no relationship.
💡 Hint: Think about what 'positive' means in everyday language.
Question 2
Spearman’s rank correlation is preferred when:
- True
- False
💡 Hint: Is Spearman used for rank data?
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Analyze data provided for studying hours and grades for a class of students. Calculate the correlation coefficient and interpret the relationship.
💡 Hint: Use the formula: r = Σ(XY) - (ΣX)(ΣY)/N.
Question 2
Given a scenario where temperature and ice cream sales data is collected, draw a scatter plot and analyze the correlation.
💡 Hint: Look for the overall trend in the scatter points.
Challenge and get performance evaluation