Question

The figure shows a scatterplot with a regression line. The data are for the 50 regions of a particular country. The predictor is the percentage of adults who smoke, the response is the percentage of high school students who smoke. Complete parts (a) and (b) below. Predicted Pct. Smokers = (-4.136 + 1.406) (Pct. Adult Smoke) a. Explain what the trend shows. Choose the correct answer below. A. The higher the percentage of adults who smoke in a region, the higher the percentage of high school students who smoke tends to be. B. For each percent increase in the percentage of adults who smoke in a region, the percentage of high school students in the region who smoke tends to decrease by 4.136. C. For each percent increase in the percentage of high school students who smoke in a region, the percentage of adults in the region who smoke tends to decrease by 4.136. D. The higher the percentage of adults who smoke in a region, the lower the percentage of high school students who smoke tends to be. b. Use the regression equation to predict the percentage of high school students who smoke, assuming that 25% of adults in the region smoke. Use 25, not 0.25. The percentage of high school students who smoke, assuming that 25% of adults in the region smoke, is about (Round to the nearest percent as needed.) %.

          The figure shows a scatterplot with a regression line. The data
are for the 50 regions of a particular country. The predictor is
the percentage of adults who smoke, the response is the
percentage of high school students who smoke. Complete parts
(a) and (b) below.
Predicted Pct. Smokers = (-4.136 + 1.406) (Pct. Adult Smoke)
a. Explain what the trend shows. Choose the correct answer below.
A. The higher the percentage of adults who smoke in a region, the higher the percentage of high school students who smoke tends to be.
B. For each percent increase in the percentage of adults who smoke in a region, the percentage of high school students in the region who smoke
tends to decrease by 4.136.
C. For each percent increase in the percentage of high school students who smoke in a region, the percentage of adults in the region who smoke
tends to decrease by 4.136.
D. The higher the percentage of adults who smoke in a region, the lower the percentage of high school students who smoke tends to be.
b. Use the regression equation to predict the percentage of high school students who smoke, assuming that 25% of adults in the region smoke. Use
25, not 0.25.
The percentage of high school students who smoke, assuming that 25% of adults in the region smoke, is about
(Round to the nearest percent as needed.)
%.

The figure shows a scatterplot with a regression line. The data
are for the 50 regions of a particular country. The predictor is
the percentage of adults who smoke, the response is the
percentage of high school students who smoke. Complete parts
(a) and (b) below.
Predicted Pct. Smokers = (-4.136 + 1.406) (Pct. Adult Smoke)
a. Explain what the trend shows. Choose the correct answer below.
A. The higher the percentage of adults who smoke in a region, the higher the percentage of high school students who smoke tends to be.
B. For each percent increase in the percentage of adults who smoke in a region, the percentage of high school students in the region who smoke
tends to decrease by 4.136.
C. For each percent increase in the percentage of high school students who smoke in a region, the percentage of adults in the region who smoke
tends to decrease by 4.136.
D. The higher the percentage of adults who smoke in a region, the lower the percentage of high school students who smoke tends to be.
b. Use the regression equation to predict the percentage of high school students who smoke, assuming that 25% of adults in the region smoke. Use
25, not 0.25.
The percentage of high school students who smoke, assuming that 25% of adults in the region smoke, is about
(Round to the nearest percent as needed.)
%.

Added by Ashley R.

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