An online poll was conducted asking respondents whether they thought members of parliament (MPs) should be allowed second jobs to boost their annual basic salary. The poll had two possible responses: "Yes, MPs should be allowed second jobs to avoid getting involved in corruption," and "No, MPs should give their full attention to representing their constituents."

a. Is there any potential for bias in this study? If so, what types of bias?

b. The poll results after two days were Does this large sample size guarantee that the results are unbiased? Explain.

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Yes 126 25% No 378 75%