Statistics

Elementary
Intermediate
Advanced

1. Analyzing Categorical Data
1.1 Analyzing one categorical variable
1.2 Two-way tables
1.3 Distributions in two-way tables

2. Displaying and Comparing Quantitative Data
2.1 Displaying quantitative data with graphs
2.2 Describing and comparing distributions
2.3 More on data displays

3. Summarizing Quantitative Data
3.1 Measuring center in quantitative data
3.2 More on mean and median
3.3 Interquartile range (IQR)
3.4 Variance and standard deviation of a population
3.5 Variance and standard deviation of a sample
3.6 More on standard deviation
3.7 Box and whisker plots
3.8 Other measures of spread

1. Modeling Data Distributions
1.1 Percentiles
1.2 Z-scores
1.3 Effects of linear transformations
1.4 Density curves
1.5 Normal distributions and the empirical rule
1.6 Calculation of normal distribution
1.7 More on normal distributions

2. Exploring Bivariate Numerical Data
2.1 Introduction to scatterplots
2.2 Correlation coefficients
2.3 Introduction to trend lines
2.4 Least-squares regression equations
2.5 Assessing the fit in least-squares regression
2.6 More on regression

3. Confidence Intervals
3.1 Introduction to confidence intervals
3.2 Estimating a population proportion
3.3 Estimating a population mean
3.4 More confidence interval videos

1. Advanced Regression (Inference and Transforming)
1.1 Inference about slope
1.2 Nonlinear regression

2. Significance Tests (Hypothesis Testing)
2.1 The idea of significance tests
2.2 Introduction to type I and type II errors
2.3 Tests about a population proportion
2.4 Tests about a population mean
2.5 More significance testing videos

3. Two-sample Inference for fhe Difference between Groups
3.1 Comparing two proportions
3.2 Comparing two means

4. Chi-Square Tests and Analysis Of Variance (ANOVA)
4.1 Chi-square goodness-of-fit tests
4.2 Chi-square tests for relationships
4.3 Analysis of variance (ANOVA)