Transcription of Unit 4 Categorical Data Analysis - UMass
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Unit 4 Categorical Data Analysis - UMass
BIOSTATS 640 - Spring 2020 4. Categorical Data Analysis - R Users Page 1 of 78 Nature Population/ Sample Observation/ Data Relationships/ Modeling Analysis / Synthesis Unit 4 Categorical Data Analysis Don t ask what it means, but rather how it is used - L. Wittgenstein Is frequency of exercise associated with better health? Is the proportion of adults who visit their doctor more than once a year, significantly lower among the frequent exercisers than among the non-exercisers? Is alcohol associated with higher risk of lung cancer? Is the apparent association misleading because we have failed to account for the relationship between drinking and smoking?
BIOSTATS 640 - Spring 2020 4. Categorical Data Analysis - R Users Page 5 of 78 Nature Population/ Sample Observation/ Data Relationships/ Modeling Analysis/ Synthesis In Unit 2 (Discrete Distributions) we learned some probability distributions for discrete data: Binomial, Poisson, and Hypergeometric.These probability distributions are often used to model the …
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