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Linear regression quiz
Five questions on Linear regression. Answer all 5 to see your score. Questions are drawn from a bank of 15, so every attempt is different.
Question 1 of 5
The least-squares line minimises:
Question 2 of 5
With r = 0.6, s_y = 10, and s_x = 2, the slope is:
Question 3 of 5
Every least-squares line passes through:
Question 4 of 5
A residual of -5 means the point is:
Question 5 of 5
A curved pattern in a residual plot indicates: