Correlation (Edexcel GCSE Statistics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What type of correlation shows an increase in both variables?
What type of correlation shows an increase in both variables?
Strong positive
What does a scatter diagram with points forming a tight line slope suggest?
What does a scatter diagram with points forming a tight line slope suggest?
Strong correlation
What is the key feature of no correlation on a scatter diagram?
What is the key feature of no correlation on a scatter diagram?
Points are randomly spread
What does a negative correlation indicate?
What does a negative correlation indicate?
One increases, the other decreases
What is an example of strong negative correlation?
What is an example of strong negative correlation?
Hours of TV watching and test scores
What kind of correlation occurs if the points form a curve rather than a line?
What kind of correlation occurs if the points form a curve rather than a line?
Non-linear correlation
What must you always consider when interpreting correlation?
What must you always consider when interpreting correlation?
Logical relationship in context
What does the example of temperature and coat sales illustrate?
What does the example of temperature and coat sales illustrate?
Strong negative correlation
What is a scatter diagram best used for?
What is a scatter diagram best used for?
Comparing two variables
Which statement about correlation is true?
Which statement about correlation is true?
It shows association only