1.a.Identify the type of sampling used: random, systematic, convenience, stratified, or cluster. A statistics student at a college polls people as they pass by the library. b.Which technique for gathering data (sampling, experiment, simulation, or census) do you think was used in the following study? An analysis of a sample of 31,000 patients from New York hospitals suggests that the poor and the elderly sue for malpractice at one-fifth the rate of wealthier patients. (Journal of the American Medical Association).   c.Which technique for gathering data (sampling, experiment, simulation, or census) do you think was used in the following study? The effects of wind shear on airplanes during both landing and takeoff were studied by using complex computer programs that mimic actual flight

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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.