For this in-class assessment, you should be able to understand the following concepts. You should be able to compute them for a small dataset or use R commands to produce them from a larger dataset:

- mean
- median
- quantiles (quartiles, deciles, ventiles, and percentiles)
- variance (
`var`

) - standard deviation (
`sd`

)

You should also be able to read the output of the function `reg_table`

and
and estimate the standard deviation of a variable.