Figure 16 displays a scatterplot that compares the mean lengths and mean heights of 51 types of dinosaurs. Let L be the mean length and H be the mean height, both in meters, of a dinosaur.

a. Describe the four characteristics of the association.
b. Imagine the line that contains the two red dots, which represent the Megalosaurus (left dot) and the Brachiosaurus (right dot). Or use a strand of thread, a stretched rubber band, or the edge of a clear ruler to form the line. Does the line appear to be a reasonable model? Explain.
c. Find an equation of the line that contains the two red dots.
d. Use the model to estimate the mean height of the Triceratops, which had a mean length of 45.7 meters. How many times greater is your result than 69.4 inches, which is the mean height of American men? There are 1.09 yards in 1 meter.

Transcribed Image Text:

Length versus Height o 30 20 10 io 20 30 40 50L Mean length (meters)