Chapter 10 production polish (#142)

* Remove top level imports and add warning supression

* Remove commented out sections

* Remove unnecessary assignment, set the seed properly, and use value_counts instead of manual computation

* Replace for loop with list comprehension

* Use value_counts instead of manual computation

* Fix typo

* Correct viz syntax

* Remove unnecessary assignment, and simplify computation

* Remove unnecessary second loop

* Simplify plotting syntax and clarify variable name

* Simplify comparison plot of sample sizes

* Use bullets to make points clearer

* Remove display option

* Remove incorrect query for means

* Reduce height to make histograms easier to read

* Change from sklearns `resample` and for loops to keep using `.sample` and list comprehensions

* Simplify visualization code

* Fix minor formatting and wording issue

* Clarify language around sampling

* Switch to orange annotations for better contrast

* Improve plotting syntax and remove re-specification of seed

* Change to actual number of samples

* Round to one decimal to reduce noise

* Round histogram limits more nicely

* Reformat and improve the explanation of the bootstrapped mean calculation

* Add description about quantiles

* Link to python version of worksheets

* Explain the name param in reset index

* Fix typo

* Clarify concatenation

* Move rename last so we can use the same rename syntax students are used to

Author: joelostblom