Recruit candidates and support campaigns,Organize elections and inform voters,Organize the government
,Unite diverse interests and make collective action possible,Serve as loyal opposition to the political party in power
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The research error described above is an example of selection bias.
Selection bias takes place when, from a population of interest, a group of individuals is selected in order to construct a sample but without a proper randomization. The result is a sample which is not representative of the underlying population.
According to the example, the target population of the research comprises all students but the sample only includes boys. Hence, selection has not been random because it followed a gender criteria, and the results obtained using it cannot be applicable to the whole population because they are affected by a selection bias.
The statement that reasons are statements that support another statement giving validity to previous statements is true. It also gives justification to the argument at hand. Reasons are also the power of our minds to think, understand and to have judgments based in logic.
The answer would be letter A.
Answer:
The Sun is a star at the center of our Solar System. It is an almost perfect sphere of plasma. It is essential for life on Earth. It is also almost 4.5 BILLION years old! It generates our magnetic field.
Explanation:
Answer: An observational study
Explanation: The researcher is observing the children who engage in play, therefore <u>this is an observational study.</u>