Conducting a Regression Analysis Using Data (VCE SSCE General Mathematics): Quizzes
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Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
Which axis is the explanatory variable plotted on in a scatterplot?
Which axis is the explanatory variable plotted on in a scatterplot?
Horizontal axis (x-axis)
What does the 'D' in the DFSO framework stand for?
What does the 'D' in the DFSO framework stand for?
Direction
In , what does represent?
In , what does represent?
The slope
If , what % of variation in RV is explained by EV?
If , what % of variation in RV is explained by EV?
65.1%
A correlation coefficient of indicates what strength?
A correlation coefficient of indicates what strength?
Moderate
What does a random scatter around zero in a residual plot indicate?
What does a random scatter around zero in a residual plot indicate?
Linear model is appropriate
Using , predict when .
Using , predict when .
20
Regression analysis investigates association between how many numerical variables?
Regression analysis investigates association between how many numerical variables?
Two
In , what does represent?
In , what does represent?
Intercept
What should you avoid when making predictions with a regression equation?
What should you avoid when making predictions with a regression equation?
Extrapolation