<style>#header {width: 100%; height: 80px; background-color: ;}#col-1 {width: 60%; float: left; height: 350px; overflow-y:scroll; background-color: ;}#col-2 {width: 40%; float: right; height: 350px; background-color: ;}
</style>
<div id="header"><center><h3>WHAT MAKES A GOOD SAMPLE?</h3><div>Section 1 of 3</div></center></div><div id="col-1"><blockquote>On Election night in 1948, the Chicago Tribune printed the headline DEWEY DEFEATS TRUMAN, which turned out to be mistaken. In the morning the grinning President-Elect, Harry S. Truman, was photographed holding a newspaper bearing this headline. The reason the Tribune was mistaken is that their editor trusted several pre-election polls.</blockquote><blockquote><br><p>A sample is the part of the population selected for analysis in a poll or survey. Researchers typically have a target population in mind when they ask a research question, so a representative sample does not have to represent every type of person in the world. For example, if you were a researcher who wanted to know the rate of drug use among all teenagers, you would only need a sample representative of teenagers. Giving the survey to adults as well would be a waste of money. However, if you gave a survey to only high school students at your local school, this would not be a good sample because it would not include home-schooled students or high school dropouts. Good samples must be representative, and a sample comprised of high-school students would not be representative of the target population of all teenagers. In the case of presidential elections as described above, the three populations most often targeted for political polls are: persons aged 18 or older, registered voters, and persons who say they will vote in the relevant election. Samples including children or people in other countries would not be representative if you wanted to predict what U.S. voters will do.</p></blockquote><p></p></div><div id="col-2"><center><b>Write your thoughts about the text below:</b></center> <br>Questions to think about:<br><ul><small><li>What does this mean?</li><li>What new information does this add?</li><li>How does this information relate to previous sentences or paragraphs?</li><li>Does this sentence or paragraph raise new questions in your mind?</li><li>Does this information provide important insights into the major theme of the text?</li><li>How does this information relate to the title?</li></small><style>.ChoiceStructure { text-align: right;}</style><br></ul></div>