In a study of heart rate in ocean - diving birds,

Last updated: 7/9/2022

In a study of heart rate in ocean - diving birds, researchers harnessed 10 randomly sampled, wild - caught cormorants to a laboratory contraption that monitored vitals signs. Each cormorant was subjected to 6 artificial "dives" over the following week (one dive per day). A dive consisted of rapidly immersing the head of the bird in water by tipping the harness. In this way, a sample of 60 measurements of heart rate in diving birds was obtained. Do these 60 measurements represent a random sample? Why or why not?