The center for the study of american electorate indicated that 64% of the voting- age voters cast ballots in the 2008 presidential election. It also indicated in the west, 34.6% of voting-age voters voted for a democrat as a representative, an increase from 30.8% in 2004 A start up company in San Jose, California has 10 employees Question: Eight of the employees votes for a Democratic Representative. determine the probability that at least 8 of the employees would vote for the democratic if they followed the national trend. (Hint: find P(X> or equal 8) using as probability of success the probability that represent the voters cast ballots) (4 decimals) Answer: The probability that at least 8 employees would vote for the democratic if they followed the national trend is :

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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.