Cosmic Rays in the Milky Way Are Important Because

question 85

Multiple Choice

Cosmic rays in the Milky Way are important because:

• A) these energetic photons easily penetrate the Earth's atmosphere
• B) they can be collected and used to generate electricity
• C) they have about the same energy as that contained in magnetic fields and in the kinetic energy of gas clouds
• D) they carry information about AGN in external galaxies
• E) they can influence the motion of stars in the halo

---

Definitions:

Z Scores

An indicator that quantifies the distance of a particular value from the mean of a dataset, using standard deviations as the unit of measure.

Z Score

A statistical measurement that describes a value's relationship to the mean of a group of values, measured in terms of standard deviations.

Mean

The average of a set of numbers, calculated by adding all the numbers together and then dividing by the count of the numbers.

Inferential Statistics

Involves making predictions or inferences about a population based on a sample of data.