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Biostatistics 1: Basic Concepts 

Biostatistics 1: Basic Concepts
Chapter:
Biostatistics 1: Basic Concepts
Source:
Mayo Clinic Preventive Medicine and Public Health Board Review
Author(s):

M. Hassan Murad

and Qian Shi

DOI:
10.1093/med/9780199743018.003.0001

Chapter 1 reviews basic concepts of biostatistics. Topics include descriptive data, probability and odds, estimation and sampling error, hypothesis testing, and power and sample size calculations. The discussion of descriptive data includes types of data (discrete vs continuous and nominal vs ordinal), central tendency (mean, median, and mode), skewed distributions, and measures of dispersion (range, variance, standard deviation). Probability and odds are broken down into laws of probability, odds, odds ratio, relative risk, and probability distribution. The examination of estimation and sampling error covers concepts such as random error, bias, standard error, point estimation, and interval estimation.

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