Recall the description of political polls taken by Literary Digest about the Landon vs.Roosevelt election,and by Reagan's staff about his race with Mondale.These are two examples of a potential error that can be made when doing survey research involving political polls.What is the lesson that survey researchers learned from these errors?

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The lesson that survey researchers learned from the errors in the Literary Digest and Reagan polls is the importance of using random selection to obtain a representative sample. Random selection helps to ensure that the sample is truly representative of the population being studied, reducing the potential for bias and increasing the accuracy of the results.

Recall the Description of Political Polls Taken by Literary Digest