First Markdown Attempt

This is my document title

This is my subtitle

The is my sub-subtitle

This is my text. Text is used to explain what happens in the following chuck.

A chunk is where you put the code.

PC: control + alt key + i Mac: command + alt (option key) + i

Create “class” heights data

heights <- c(65, 68, 63, 69, 70, 51, 55, 56, 75, 58)

Calculate the mean height

mean(heights)

## [1] 63