Fitting a Linear Model to the Data (VCE SSCE General Mathematics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
ShowHide
Practise the questions
10 questions from this quiz
What is the process of fitting a straight line to data showing a linear association called?
What is the process of fitting a straight line to data showing a linear association called?
Linear regression
In the regression line equation , what does represent?
In the regression line equation , what does represent?
The y-intercept
In the regression line equation , what does represent?
In the regression line equation , what does represent?
The slope
What does fitting a line 'by eye' involve?
What does fitting a line 'by eye' involve?
Using a ruler to balance data points
What is a residual?
What is a residual?
Vertical distance from point to line
When is a residual positive?
When is a residual positive?
When data point lies above the line
What does the least squares method minimize?
What does the least squares method minimize?
Sum of squared residuals
Why are residuals squared in the least squares method?
Why are residuals squared in the least squares method?
To prevent positive/negative cancel out
What is the formula for the slope in the least squares method?
What is the formula for the slope in the least squares method?
Which should be calculated first when finding the least squares line?
Which should be calculated first when finding the least squares line?
The slope