Scatter Graphs (Edexcel GCSE Maths): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is correlation?
What is correlation?
Strength of connection between data sets
What is true about the line of best fit?
What is true about the line of best fit?
Has equal points above and below the line
What does strong correlation mean?
What does strong correlation mean?
Data points form a fairly straight line
What pattern shows positive correlation?
What pattern shows positive correlation?
Uphill line from left to right
What pattern shows negative correlation?
What pattern shows negative correlation?
Downhill line from left to right
What does no correlation look like?
What does no correlation look like?
Randomly scattered points, no clear line
What is weak correlation?
What is weak correlation?
Pattern exists but isn't very clear
What is interpolation?
What is interpolation?
Predictions within the data range
What is extrapolation?
What is extrapolation?
Predictions outside the data range
When describing correlation, what should you mention?
When describing correlation, what should you mention?
Both strength and direction
In positive correlation, how do variables change?
In positive correlation, how do variables change?
In the same direction
In negative correlation, how do variables change?
In negative correlation, how do variables change?
In opposite directions