The following is a scatterplot of a company's profits versus their sales (in dollars). Each point on the plot represents profits and sales during one of the months in the sample. Which of the following statements is supported by the plot?
A)There is no striking evidence that the assumptions for regression are violated and there is a clear, straight-line trend.
B)There are very influential observations suggesting that the least-squares regression line must be interpreted with extreme caution.
C)The plot contains dramatic evidence that the standard deviation of the response about the true regression line is not even approximately the same everywhere.
D)The plot contains many fewer points than are needed to fit the least-squares regression line; obviously there is a major error present.

Question

The following is a scatterplot of a company's profits versus their sales (in dollars). Each point on the plot represents profits and sales during one of the months in the sample.  Which of the following statements is supported by the plot?
A)There is no striking evidence that the assumptions for regression are violated and there is a clear, straight-line trend. 
B)There are very influential observations suggesting that the least-squares regression line must be interpreted with extreme caution. 
C)The plot contains dramatic evidence that the standard deviation of the response about the true regression line is not even approximately the same everywhere. 
D)The plot contains many fewer points than are needed to fit the least-squares regression line; obviously there is a major error present.

Quizplus · Accepted Answer

The Answer of The following is a scatterplot of a company's profits versus their sales (in dollars). Each point on the plot represents profits and sales during one of the months in the sample.  Which of the following statements is supported by the plot?
A)There is no striking evidence that the assumptions for regression are violated and there is a clear, straight-line trend. 
B)There are very influential observations suggesting that the least-squares regression line must be interpreted with extreme caution. 
C)The plot contains dramatic evidence that the standard deviation of the response about the true regression line is not even approximately the same everywhere. 
D)The plot contains many fewer points than are needed to fit the least-squares regression line; obviously there is a major error present.

The Following Is a Scatterplot of a Company's Profits Versus