In Galton's height data (Figure 7.1, in Section 7.1), the least-squares line for predicting forearm length (y) from height (x) is y = -0.2967 + 0.2738x.
a. Predict the forearm length of a man whose height is 70 in.
b. How tall must a man be so that we would predict his forearm length to be 19 in.?
c. All the men in a certain group have heights greater than the height computed in part (b). Can you conclude that all their forearms will be at least 19 in. long? Explain.
October 4, 2016 Lecture 12: Wind and Waves Things to Remember - Water can hold a lot of heat - Sunlight causes evaporation – storing energy - Condensation into rain releases energy o Causes lightning, hurricanes, tornadoes - High Pressure = Descending Air = Dry - Low Pressure = Rising...