Lab: Classification Trees

Use classification trees to predict the survival of Titanic passengers.
Merge branch 'develop' of github.com:byuimpact/numerical_computing into develop
Lab: Gibbs Sampling

Understand the basic principles of implementing a Gibbs sampler.
Lab: K-Means Clustering
Remove old version of Givens Rotations lab.
Merge pull request #164 from ayr0/given

Remove old version of Givens Rotations lab.
A minor fix
Lab: Gaussian Mixture Models

Understand the formulation of Gaussian Mixture Models and how to estimate GMM parameters.
Lab: Newton's Method
Merge pull request #167 from AZaitzeff/knap

A minor fix