Understanding the Correlation Coefficient
10 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What does a correlation coefficient of -1 indicate?

  • No linear relationship
  • A perfect positive correlation
  • An inconsistent correlation
  • A perfect negative correlation (correct)

Which value represents a perfect positive correlation?

  • -1
  • 0
  • 2
  • 1 (correct)

What is the Pearson coefficient mainly used for?

  • Measuring inconsistent correlations
  • Determining dependent variables
  • Assessing nonlinear associations between variables
  • Measuring linear relationships between two variables (correct)

What does a correlation coefficient of 0 indicate?

<p>No linear relationship (C)</p> Signup and view all the answers

In finance, what is the purpose of using correlation coefficients?

<p>Assessing the degree of association between two variables (B)</p> Signup and view all the answers

What does the Pearson coefficient measure?

<p>The strength of the line of best fit (C)</p> Signup and view all the answers

In which scenario does a correlation coefficient of -1 or 1 occur?

<p>When there is a perfect linear relationship between the variables (A)</p> Signup and view all the answers

What values describe a strong correlation in physics and chemistry?

<p>-0.9 and 0.9 (B)</p> Signup and view all the answers

How is the correlation coefficient calculated?

<p>As the covariance divided by the product of standard deviations (B)</p> Signup and view all the answers

What determines the statistical significance of a correlation coefficient?

<p>Both the p-value and data sample size (C)</p> Signup and view all the answers

More Like This

Use Quizgecko on...
Browser
Browser