These pages are intended to help you get started using R for common statistical operations.

#### Graphics

#### Tutorials

- How To Create a Contingency Table in R
- How to Make a Frequency Table in R
- How To Generate Descriptive Statistics in R
- How To Create a Histogram in R

#### Statistical Testing

- How To Find Z Score in R
- How To Run a t Test in R
- How To Run A Chi Square Test in R (earlier article)
- Normality Test in R

#### Statistical Operations

- Find the mean in R
- Calculate Standard Error in R
- Calculate Standard Deviation in R
- Calculate Variance in R
- Calculate Skewness in R
- Calculate Kurtosis in R
- Calculate Confidence Interval in R
- Using a Chi Square Test in R
- Power analysis in R
- Percentile in R
- Quartile in R
- Range in R
- How To Find Interquartile Range in R

If you need a web based statistical calculator, check out our project.