PRC-2 · Chapter 10 · Question 35 of 60
In a formulated regression equation represented as Y = 250 - 4.5X, what does the value '-4.5' 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' is the slope. Here, -4.5 is the slope, indicating that for every 1 unit increase in X, the predicted value of Y will mathematically decrease by 4.5 units.
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