Answer:
Selection bias
Explanation:
Selection bias occurs because the sample that is taken is not representative of the general population.
If a sample is taken from the undergraduate students you can only generalize to undergraduate students.
Say that you want to know which is the most popular baseball team in the country and you take a sample from New York, and that give a result that 60% of the sample supports the Yankees. If you say "60% of americans support the Yankees" you will be commiting an error because your sample is not representative, and Californians may not share that result (for example).
<span>There's not really any pros for propaganda because essentially what you are doing is lying to get someone to believe something. I guess you could say a pro is that gullible people will believe you, but that's an unethical pro. The cons are that it usually causes much controversy in a society where there's not supposed to be a bias in the government. Propaganda in its true form is never a good thing. It is unethical in the sense that it takes advantage of people who are too lazy to do research and quick to believe what someone tells them. One example I like to use is many of these independent "news" websites. On both ends of the political spectrum, left and right, you find websites that have articles so heavily weighed down with that wings propaganda that true news becomes less and less visible. Occupy Democrats is one textbook example of that. Their articles are so left leaning that you read an article and are immediately left with a left leaning impression. Same goes for a lot of right wing websites. I'm not going to say "always" but propaganda 99.9 percent of the time is not good. Instead of people doing their own research to decide their view on something, propaganda </span>tells<span> people what they should think versus the </span><span>asking </span><span>people what they think</span>
It helped increase the oil industry i hope this helps and if its the answer your looking for award me the brainliest.
Cost-Low structure
Benefit- Most needed
