HPS 0611 Chapter 5: chapter 5

• School: Pitt
• Department: History and Philosophy of Science
• Course: HPS 0611
• Professor: Marina Baldissera Pacchetti

Document Summary

5. 2: the elements of statistical study: the real world population, all studies are made up of a group of the weal world pop, properties: the nature of the individuals making up a population under investigation, whose incidence in the population one seeks to determine features of real world, model of the sample sample from the model of the population, use auxiliary info to judge the overall fit between the real world and the models, then use information what we know about relationships between models to draw conclusions about the real world pop using data about the actual sample. 5. 4: simple correlations: correlation: relationship between two variables each with various numbers of possible values, variables correlated: the percentage of two variables are not equal, greater: positively correlated tend to go together, smaller: negatively correlated tend not to go together, if two variables are correlated depends entirely on the population in questions.