statinf-integralCalculations.Rmd

---
title: "statinf-integralCalculations"
author: "Len Greski"
date: "8/5/2017"
output: html_document
---

```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = TRUE)
```

## Fixed Integral of a Point

$\int_{a}^{a} f(x) dx = 0$

## Standard Deviation from Census Table Data

$s = \frac{x_{5 ptile}-\bar{x}}{Z_{5 ptile}}$.