According to Board of Elections data, 10.6% of the registered voters in Durham voted in the 2013 election. Suppose we asked 9 randomly- selected Durham voters whether they voted that year and counted yes' answers as successes. Find the probability that exactly 5 of them voted: Find the probability that at most 2 of them voted: Find the probability that at least 3 of them voted:

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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.