Do metal tags on penguins harm them?  Scientists have severa…

Dо metаl tаgs оn penguins hаrm them?  Scientists have several methоds to tag them.  One method involves wrapping metal strips with ID numbers around the penguin's flipper.  Another involves electronic tags.  Scientists wanted to determine wheter metal tags have any significant effict on the penguins.  Data wer collected over a 10-year time span from a sample of 100 penguins, including the number of chicks, survival rate, and length of time on foraging trips.a) What are the cases?b). What are the variables and identify each as categorical or quantitative?