Tools of Enviromental Science

The classification and collection of data that are in the form of numbers is called

• mean

• distribution

• probability

• statistics

The group that does not receive the experimental treatment in an experiment is the

• control group

• experimental group.

• data

• variable

By examining _____, scientists can test predictions for situations in which it is impossible or unethical to use experiments.

• control groups

• variables

• correlations

• observations

Scientists use statistics to

• graph data.

• analyze data.

• communicate ideas to each other.

• All of the above

In an experiment, the factor of interest is called the

• control group

• experimental group

• hypothesis

• variable

The average mass of a wolf in a pack of wolves is an example of

• mean

• distribution

• sample size

• statistical population

A model of a dinosaur is an example of a _____ model.

• graphical

• mathematical

• conceptual

• physical

The chance that an earthquake will occur in your town during the next year is an example of

• risk

• correlation

• skepticism

• distribution

The experimental method includes which of the following steps?

• remaining skeptical, organizing data, and analyzing data

• drawing conclusions, being open to new ideas, and communicating results

• observing, hypothesizing, predicting, experimenting, and communicating results

• being curious, imagining, being able to see patterns, observing, and predicting

Why are mathematical models important?

• They are especially useful in situations with many variables.

• They can be used to create useful digital images.

• They can represent how a system or process works.

• All of the above