The scores on a psychology exam were normally distributed with a mean of 64 and a standard deviation of 8. What is the standard score for an exam score of 64? The standard score is (Round to the nearest hundredth as needed.)

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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.