In the video, I showed one way in which a small increase in average could have resulted in a large increase in the proportion of obese children. There are other ways too.
Here's one of those ways. Even if everyone gained exactly one pound, it may be the case that there were so many previously-almost-obese-children (within 1lb of obesity) or so few previously-obese children that the one pound gain increases the obese proportion dramatically.
Here's another. A lot of kids could have lost weight. To compensate for those kids losing weight, we'd have to have a lot of kids gaining weight to increase the total average by 1lb. Those kids that gain weight could be the large increase in obese children. If you're statistically inclined, think of it this way. Assume weight is normally distributed. Flatten the curve in the middle and shift the entire curve 1lb to the right. You would get substantially more obese children with a substantial flattening of the curve.
In the video, I showed one way in which a small increase in average could have resulted in a large increase in the proportion of obese children. There are other ways too.
Here's one of those ways. Even if everyone gained exactly one pound, it may be the case that there were so many previously-almost-obese-children (within 1lb of obesity) or so few previously-obese children that the one pound gain increases the obese proportion dramatically.
Here's another. A lot of kids could have lost weight. To compensate for those kids losing weight, we'd have to have a lot of kids gaining weight to increase the total average by 1lb. Those kids that gain weight could be the large increase in obese children. If you're statistically inclined, think of it this way. Assume weight is normally distributed. Flatten the curve in the middle and shift the entire curve 1lb to the right. You would get substantially more obese children with a substantial flattening of the curve.
Young: Not necessarily. No one has the time to both be a competitive swimmer and hold an outside job. But unlike in the past, today’s competitive swimmers can make a living at their sport.
Young proposes a different hypothesis for the increased longetivity of competitive swimming careers. Before, swimmers couldn’t make a living at their sport, so had to quit to get a job. But now, swimmers can make a living at their sport.
A
attempting to demonstrate that the evidence Warner advances actually undermines Warner’s conclusion
B
presenting a counterexample in order to weaken the evidence offered in support of Warner’s conclusion
C
arguing that a condition that Warner takes to be sufficient to account for a phenomenon is necessary but not sufficient
D
maintaining that the evidence presented in support of Warner’s conclusion presupposes the truth of that conclusion
E
offering an alternative to Warner’s explanation of a certain phenomenon
To make the argument valid, then, we want to establish that if regular smokers rarely look at cig. packaging when taking out a cig., then the packaging won’t affect their smoking habits.
A
If implementing certain regulations on the packaging of cigarettes would affect the smoking habits of those who smoke cigarettes regularly, those regulations should be implemented.
B
If those who regularly smoke cigarettes look at disturbing pictures of smoking-related diseases frequently, it is likely to affect their smoking habits.
C
Almost all people who regularly smoke cigarettes are already familiar with the risks that smoking poses to their health.
D
The new packaging cannot affect the smoking habits of people who regularly smoke cigarettes unless they frequently look at the packaging when taking out cigarettes.
E
Most people who regularly smoke cigarettes would be unable to describe the logo of their usual brand of cigarettes if asked to do so.
Janet: Although it’s true that nurse anesthetists receive excellent training, only doctors have the broader medical training to handle the rare emergencies that can arise.