A Research survey asked 4,615 randomly sampled registered voters their political affiliation (Party A, Party B, or Independent) and whether they identify as undecided voters. 35% of respondents identified as Independent, 23% identified as undecided voters, and 11% identified as both. Are being Independent and being an undecided voter disjoint, i.e., mutually exclusive? b. What percent of voters are Independent but not undecided voters? What percent of voters are Independent or undecided voters? а. с.

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Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.