Transcription of OMMON ESCRIPTIVE TATISTICS C THREE
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OMMON ESCRIPTIVE TATISTICS C THREE
COMMON DESCRIPTIVE STATISTICS / 13 CHAPTER THREE COMMON DESCRIPTIVE STATISTICS The analysis of data begins with descriptive statistics such as the mean, median, mode, range, standard deviation, variance, standard error of the mean, and confidence intervals. These statistics are used to summarize data and provide information about the sample from which the data were drawn and the accuracy with which the sample represents the population of interest. The mean, median, and mode are measurements of the central tendency of the data.
14 / A PRACTICAL GUIDE TO BIOSTATISTICS Perhaps the most commonly used method to describe the variability of a data set is the standard deviation.It is the cornerstone behind most of the commonly used statistical tests.
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