Question

Scientists did a 10-year study to investigate the effect of tagging penguins with either a metal strip or an electronic tag. In the student, a sample of 100 penguins were randomly assigned to one of two groups, then followed for 10 years. The study learned that, overall, penguins tagged using a metal strip had fewer chicks, had a lower survival rate (percent to survive over the decade), and on average took significantly longer on foraging trips than penguins who were tagged with an electronic tag.Which variable is the explanatory variable? Which ones can be considered response variables?

Answer 1

Solution:

1) The explanatory variable : Explainatory variable is also known as the independent variable.

Explanatory variables are

* Electronic tag and

* Metal strip tag for penguins.

These variables are categorical variables as they cannot be measured in numbers.

2) Response variables is also known as a dependent variable :

Response variables are

* Survival rates

* Number of chicks and

* Foraging trip duration by penguins.

These variables are quantitative variables as they can be measured in numbers.