In the first biostatistics lecture, we talked about how to describe data. We summarized continuous data with means or medians, and categorical data with proportions. We also summarized variation with standard deviations or percentiles, and we noted that explaining variation is one key goal of clinical research.The next step is to analyze our data to start to understand variation. The first analyses will compare groups of people. Do they have different means? Medians? Proportions?Consider basel1146
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