Tutor profile: Rachel S.

How do you install and attach a package in RStudio?

To install a package in RStudio, first, find the pane that includes the "Packages" tab, and click on it. In the top left corner of the pane, there is an "Install" button. Type in the name of the package you need, and click "Install." You will see the code running in your Console pane, which is how you know it is working. Once it is finished, you simply need to use the library() function with the name of the package within the parenthesis in your Console.

How can we save the Earth from air pollution?

Reducing air pollution is really important for both the health of people and the health of our planet. Simple solutions, such as public transportation and electric vehicles, can reduce the air pollution associated with cars, including carbon dioxide and particulate matter. Federal regulations can reduce air pollution associated with industrial factories.

What are the two mains classes that fish are divided into?

Chondrichthyes, which are the cartilagenous fishes, and osteichtyes, which are bony fishes. Examples of cartilagenous fishes are sharks and rays, and examples of bony fishes are tunas and mackerels.