Calculating Spearman's rank correlation coefficient (AQA GCSE Statistics): Quizzes
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Practise the questions
10 questions from this quiz
What does Spearman's rank measure?
What does Spearman's rank measure?
Strength of ranked data
What is the range of Spearman's coefficient?
What is the range of Spearman's coefficient?
-1 to +1
What rank does the smallest value get?
What rank does the smallest value get?
Rank 0
How do you handle tied values?
How do you handle tied values?
Average their ranks
What is the first step in calculating Spearman's rank?
What is the first step in calculating Spearman's rank?
Calculate d²
What does an rs value of 0.81 indicate?
What does an rs value of 0.81 indicate?
Strong positive correlation
What is Σd² in the formula?
What is Σd² in the formula?
Sum of squared differences
What is a common mistake in Spearman's calculation?
What is a common mistake in Spearman's calculation?
Using original values
What does an rs value close to 0 indicate?
What does an rs value close to 0 indicate?
Weak correlation
What should you always show in exams?
What should you always show in exams?
All calculations