Brain and Body Weight Data
Source: Jerison, H. J. (1973), "Evolution of the Brain and
Intelligence," New York: Academic Press.
Taken From: Rousseeuw, P. J. and Leroy, A. M. (1987), "Robust Regression
and Outlier Detection," New York: John Wiley & Sons, p. 57.
Dimension: 28 observations on 2 variables
Description: The sample was taken from a larger data set. It is to be
determined whether a larger brain is required to govern a
heavier body. The observations represent the following animals:
1 Mountain beaver 2 Cow 3 Gray wolf 4 Goat
5 Guinea pig 6 Diplodocus 7 Asian elephant 8 Donkey
9 Horse 10 Potar monkey 11 Cat 12 Giraffe
13 Gorilla 14 Human 15 African elephant 16 Triceratops
17 Rhesus monkey 18 Kangaroo 19 Hamster 20 Mouse
21 Rabbit 22 Sheep 23 Jaguar 24 Chimpanzee
25 Brachiosaurus 26 Rat 27 Mole 28 Pig
Column Description
1 Body weight in kilograms
2 Brain weight in grams