Statistical Sciences 1024A/B Lecture Notes - Lecture 5: Radioactive Contamination, Confounding, Blood Alcohol Content

• School: Western University
• Department: Statistical Sciences
• Course: Statistical Sciences 1024A/B
• Professor: Lori Murray

Document Summary

Francis galton, 1886- regression towards mediocrity in hereditary stature journal of the anthropological. Suppose that y is a response variable (plotted on the vertical axis) and x is an explanatory variable (plotted on the horizontal axis). A straight line relating y to x has an equation of the form. In this equation, b is the slope, the amount by which y changes when x increases by one unit. The number a is the intercept, the value of y when x = 0 y = a +bx. A regression line is a straight line that describes how a response variable y changes as an explanatory variable x changes. Often used to predict the value of y for a given value of x. The hanford atomic energy plant in washington state had been producing plutonium since wwll. Some of the waste from the plant was stored in open pits and the radioactive waste had leaked into the.