150 Feeding behavior of fish. Zoologists at the University of Western Australia conducted a study of the feeding behavior of black bream (a type of fish) spawned in aquariums.

( Brain, Behavior and Evolution , April 2000). In one experiment, the zoologists recorded the number of aggressive strikes of two black bream feeding at the bottom of the aquarium in the 10-minute period following the addition of food. The number of strikes and age of the fish (in days)

were recorded approximately each week for nine weeks,

as shown in the table above. The data are saved in the BLACKBREAM file.

a. Construct a scatterplot of the data, with number of strikes on the y -axis and age of the fish on the x -axis.

b. Examine the scatterplot of part a . Do you detect a trend?

Transcribed Image Text:

Data for Exercise 150 Week 123456789 Number of Strikes Age of Fish (days) 85 120 63 136 34 150 39 155 58 162 35 169 57 178 12 184 15 190 Based on Shand, J., et al. "Variability in the location of the retinal gan- glion cell area centralis is correlated with ontogenetic changes in feeding behavior in the Blackbream, Acanthopagrus 'butcher." Brain and Behavior, Vol. 55, No. 4, April 2000 (Figure 10H).