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).
Answer:
The correct answer is B. The 1894 Pullman Strike crippled national rail service and triggered the arrest of union president Eugene V. Debs.
Explanation:
The Pulman strike was a nationwide conflict between unions and railway companies in 1894 in the United States. The conflict began in Pullman, Illinois, when on May 11, 1894, about 3,000 Pullman employees began a wild strike in response to lower wages and halted all movement west of Chicago. At the height of the events, in which the American Union of Railroads was the organizing force, the first national union in the United States led by Eugene Debbs, up to 250,000 people in 27 states participated in the fight against railroad companies on the part of the railroad.
President Cleveland sent federal troops to Chicago to stop the strike, which sparked a debate in his own office regarding compliance with the US Constitution.
I believe the answer is: D. <span> Skinner; operant
According to skinner, operant conditioning refers to the attempt to make a subject to display desired beahvior by using rewards and punishment.
In the scenario above, completing the homework is the desired behavior and letting her choose the movie is the reward.</span>