[Solved] What does the Spearman correlation measure between two variables? — Ans: The strength and direction of a monotonic relationship based on ranks | SciPy

SciPy - Statistical Tests

What does the Spearman correlation measure between two variables?

AThe variance of a single variable

BThe strength and direction of a monotonic relationship based on ranks

CThe difference in means of two variables

DThe linear relationship between two variables

Step-by-Step Solution

Solution:

Step 1: Understand correlation types
Spearman correlation measures how two variables move together based on their rank order, not their actual values.
Step 2: Compare with other correlations
Unlike Pearson correlation, which measures linear relationships, Spearman focuses on monotonic relationships using ranks.
Final Answer:
The strength and direction of a monotonic relationship based on ranks -> Option B
Quick Check:
Spearman = monotonic rank correlation [OK]

Quick Trick: Spearman uses ranks, not raw values, to find monotonic links [OK]

Common Mistakes:

MISTAKES

Master "Statistical Tests" in SciPy

9 interactive learning modes - each teaches the same concept differently

More SciPy Quizzes

What does the Spearman correlation measure between two variables?