Suppose you are asked to sample 100 students at the University to get their opinions about a requirement that all students get Covid-19 vaccine before resuming inperson classes in the Fall 2021. a)  Describe how you could go about getting a stratified sample. b)  Describe how you could go about getting a voluntary response sample

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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.