Errata: "So, if you will, we are predicting random variable Y height from three random variable or three components of the one random variable X -- your choice

Errata: "So, if you will, we are predicting random variable Y height from three random variable or three components of the one random variable X -- your choice." should read "So, if you will, we are predicting random variable Y height from three random variables or three components of the one random variable X -- your choice."