PRC-2 · Chapter 10 · Question 49 of 60
In a formulated linear regression equation represented as Y = 500 - 6.5X, what does the value '-6.5' specifically represent?
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: D) The mathematical slope of the regression line.
Explanation
In the standard regression format Y = a + bX, 'b' represents the slope. Here, -6.5 is the slope, indicating that for every 1 unit increase in X, the predicted value of Y mathematically decreases by 6.5 units.
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