## Elementary Statistics

Part 1: Exploratory Data Analysis
• 0. R and RStudio (pdf)
• 3. Graphical and Numerical Methods (pdf)
• 4. Bivariate Numerical Data (pdf)

Learning Objectives (from openintro.org)

These learning objectives correspond to the free textbook, OpenIntro Statistics, Third Edition, and to our course as well.

Exercise Data
• 3. Graphical and Numerical Methods (zip)
• 4. Bivariate Numerical Data (zip)
Classwork
• 1a. CDC risk factors (zip pdf)

#### Exploratory Data Analysis

• using R as a calculator (zip pdf)
• uniform distribution (zip pdf)
• standard normal distribution (zip pdf)
• plots (zip pdf)
• center and spread (zip pdf)
• importing data into R ... grades (zip pdf)

#### Graphical Methods

• barcharts (Rmd pdf)
• barchart ... GPS (zip pdf)
• dotplots (Rmd pdf)
• comparative dotplots (Rmd pdf)
• boxplots (Rmd pdf)
• comparative boxplots (Rmd pdf)
• outliers ... premature babies (Rmd pdf)
• histograms and comparative histograms ... TV (Rmd pdf)
• histograms and comparative histograms ... tuition, wireless (Rmd pdf)
• histograms and comparative histograms ... Old Faithful (zip pdf)
• histograms ... honey bees (Rmd pdf)
• histograms ... vitamin D (Rmd pdf)

Wikipedia : Tropical cyclone

• histograms ... hurricanes (zip pdf)
• histograms with unequal bin widths ... GPA errors (Rmd pdf)
• histograms with unequal bin widths ... education (Rmd pdf)
• histogram shapes ... Old Faithful (Rmd pdf)
• density curves ... CO2, pH, students (zip pdf)
• mosaicplots ... smoking, relationships, happiness (Rmd pdf)
• scatterplots ... athletic shoes (Rmd pdf)
• scatterplots ... mothers and daughters, Pearson and Lee, 1903 (Rmd pdf)
• time series plots ... western wildfires (Rmd pdf)
• time series plots ... PNC Christmas Price Index (Rmd pdf)

#### Numerical Methods

• stem-and-leaf plots (Rmd pdf)
• frequency distributions (Rmd pdf)
• frequency distributions ... World Bank, time to start a business (Rmd pdf)
• frequency distributions ... World Bank, central govt debt (Rmd pdf)
• medians and quartiles (Rmd pdf)
• means and standard deviations ... blood volume (Rmd pdf)
• quartiles and IQR ... web site visits (Rmd pdf)
• quantiles ... higher ed (Rmd pdf)
• distributions ... flights (zip pdf)

#### Bivariate Numerical Data

• regression ... CA universities (Rmd pdf)
• regression ... Anscombe's quartet (Rmd pdf)
• outlier ... Bob Beamon, Mexico City Olympics, 1968 (Rmd pdf)
• influential points ... Arabidopsis thaliana (Rmd pdf)
• influential points ... butterfly ballot (Rmd pdf)
• correlation ... helmets (Rmd pdf)
• Pearson correlation coefficient ... bivariate numerical data (zip pdf)
• prediction ... tannins (Rmd pdf)
• prediction ... grapes (Rmd pdf)
• residuals ... mouse (Rmd pdf)
• logistic regression ... wolf spiders (Rmd pdf)
• logistic regression ... ratRiddance (Rmd pdf)

Field Herp Forum : Peruvian Amazon ... Amphibians

• logistic regression ... Amazonian frogs (Rmd pdf)

#### Graphics using ggplot2

• barplot ... GPS (zip pdf)
• comparative barplots ... colors (zip pdf)
• boxplot ... scores (zip pdf)
• comparative boxplots ... restaurants (zip pdf)
• Pareto plot ... graduate degrees (zip pdf)
• dotplot, histogram, density plot ... vitamin D (Rmd pdf)
• comparative dotplots ... fruit flies (Rmd pdf)
• comparative dotplots ... vitamin D (Rmd pdf)
• comparative histograms ... fuel efficiency (Rmd pdf)
• scatterplot, smoother, regression line ... beer (zip pdf)
• confidence and prediction bands ... Porsche (zip pdf)
• normal distribution, qqnorm, qqline ... normal (zip pdf)
• distributions ... distributions (zip pdf)
• linear model, residuals ... residuals (zip pdf)
• two-way classification ... sugar (zip pdf)
• two-way anova ... heart rate (zip pdf)
• draw.ci ... draw.ci (zip pdf)
• error bars ... error bars (zip pdf)
• draw.normal ... draw.normal (zip pdf)
• draw.t ... draw.t (zip pdf)
• draw.chisq ... draw.chisq (zip pdf)
• draw.F ... draw.F (zip pdf)
• colors ... GPS (zip pdf)
• dplyr ... diabetes (zip pdf)
• dplyr ... statistics (zip pdf)

#### Biographies

Rothamsted Research Station ... Wikipedia

#### Exploratory Data Analysis, OpenIntro Labs

cparrish@sewanee.edu