Why Is the Coma Cluster of Galaxies a Favorite Among

question 191

Multiple Choice

Why is the Coma cluster of galaxies a favorite among astronomers?

• A) The Coma cluster is the cluster in which the Milky Way Galaxy is situated.
• B) The Coma cluster contains two quasars.
• C) The Coma cluster is the rich, regular cluster nearest Earth.
• D) The Coma cluster is the rich, irregular cluster nearest Earth.

---

Definitions:

Independent Samples

Samples that are collected from separate populations and are not related or paired in any way, ensuring that the observations are independent of each other.

Normal Populations

Normal populations are groups or sets of entities that have characteristics following a normal distribution, which is symmetric around its mean.

Student T-Distributed

Refers to a family of distributions that arise when estimating the mean of a normally distributed population in situations where the sample size is small and population standard deviation is unknown.

Normally Distributed

Describes a dataset that forms a bell-shaped curve when graphed, with most values clustering around a central region and thin tails on either end.