Are treatment assignments classified as categorical data or quantitative? Example Treatment 1 840 total people receiving  40 died, 20 died past week 4, 10 developed health issues  Treatment 2 850 people receiving  30 died, 15 died past week 4, 9 developed health issues  Control 600 people received Placebo 33 died, 32 died past week 4, 8 developed health issues

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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.