Product Moment Correlation Coefficient (Edexcel A-Level Further Mathematics): Quizzes

📚Quizzes
Revision NotesModel AnswersQuizzesFlashcardsExam Questions
Product Moment Correlation Coefficient
Sign up to keep practising.Create a free account to play more quizzes and track your progress.

Practise the questions

10 questions from this quiz

Show

What is the range of possible values for rr?

Between -1 and 1

What value of rr indicates perfect positive linear correlation?

r=1r = 1

What value of rr indicates perfect negative linear correlation?

r=−1r = -1

What does r=0r = 0 indicate about the relationship between xx and yy?

No linear correlation

How does the gradient of the line affect the correlation coefficient rr?

Gradient has no bearing on rr

What are residuals in correlation analysis?

Vertical distances from the line

When is it NOT appropriate to calculate rr?

When the data is not linear

What effect does coding xx and yy have on rr?

No effect on rr

What does the PMCC measure?

How linearly correlated two variables are

In the PMCC formula r=SxySxxSyyr = \frac{S_{xy}}{\sqrt{S_{xx}S_{yy}}}, what is in the numerator?

SxyS_{xy}

Explore Edexcel A-Level Further Mathematics Revision Notes by Topics

Poisson & Geometric Hypothesis Testing

Chi Squared Tests

Quality of Tests

Explore Edexcel A-Level Further Mathematics Model Answers by Topics

Poisson & Geometric Hypothesis Testing

Chi Squared Tests

Quality of Tests

Explore Edexcel A-Level Further Mathematics Flashcards by Topics

Poisson & Geometric Hypothesis Testing

Chi Squared Tests

Quality of Tests

Explore Edexcel A-Level Further Mathematics Exam Questions by Topics

Poisson & Geometric Hypothesis Testing

Chi Squared Tests

Quality of Tests

Join 100,000+ A-Level students studying Quizzes with us.

Select your subjects, and get access to A+ resources today.