The variables x and y are believed to correlate according to the equation y = ax2 + bx + c, where a, b, and c are constants. Which of the following scatterplots would provide the strongest evidence in support of the hypothesis that a < 0?
A.
B.
C.
D.
Answer:C
The variables x and y are believed to correlate according to the equation y = ax2 + bx + c, where a, b, and c are constants. Which of the following scatterplots would provide the strongest evidence in support of the hypothesis that a < 0?
A. B. C. D.
Explanation: C