📝 One-liners · 65 cards
CORRELATION & REGRESSION
What does correlation measure in statistics?
Correlation measures the degree and direction of linear relationship between two variables. It quantifies how closely two variables move together.
What is the difference between simple correlation and partial correlation?
Simple ignores other variables; partial controls for them.
What is the range of the correlation coefficient?
The correlation coefficient (r) ranges from -1 to +1. A value of +1 indicates perfect positive correlation, -1 indicates perfect negative correlation, and 0 indicates no linear relationship.
What is a spurious correlation?
False correlation caused by a third confounding variable.
🔒
Unlock 65 revision one-liners
Interactive flashcard deck — flip every card to drill questions and answers, mark the ones you got wrong, and revise smarter for CORRELATION & REGRESSION.
🪙
Unlock cost
300 coins
30-day access · re-unlocks free for 30 days