00914 - Statistics

Learning outcomes

By the end of the module the student should know the basic themes of statistics either from a methodological and an applied perspective. In particular the student should be able to: - summarize statistical data using distributions and graphs - select and compute the most appropriate summary statistics (mean values and variablity measures) - meausre the strength of the association between two characters observed on the same set of units.

Course contents

During the course the following topics will be addressed

· Statistical units and variables

· The concept of natural variation

· Quantitative and qualitative data

· Observed and relative frequencies

· Statistical distributions

· Mean values (mode, median, quantiles, arithmetic, harmonic, geometric, quadratic mean)

· Variability measures (range, interquartile range, deviance, variance, standard deviation, coefficient of variability, Gini's ratio)

· Graphical representations of data

· Relationship between two characters

· measure of independence and its standardized forms

· Simple linear regression and correlation; R2

Readings/Bibliography

D. Freedman, R. Pisani, R. Purves, Statistics, W.W. Norton, 4th edition, 2007

Teaching methods

Lectures and tutorials

Assessment methods

Written/lab and oral assesment

Teaching tools

Computer lab tutorials

Links to further information

http://www2.stat.unibo.it/montanari

Office hours

See the website of Angela Montanari