The Paleozoic Era Begins with the Cambrian and Concludes with the

question 4

Multiple Choice

The Paleozoic era begins with the Cambrian and concludes with the

• A)Ordovician period.
• B)Silurian period.
• C)Permian period.
• D)Triassic period.

---

Definitions:

Equal-variances Test

A statistical procedure used to assess whether the variances of two populations are equal, as assumed by certain parametric tests.

Unequal Variances

A situation in statistical analyses where two or more groups have significantly different variances, impacting the assumptions of certain tests.

Normally Distributed

A description of dataset that follows a normal distribution, with most observations clustering around the mean and symmetrical tails.

Mean Value

The average of a set of numbers, calculated by dividing the sum of all values by the number of values.