What Is a Rock? Describe the Different Types of Rocks

question 14

Essay

What is a rock? Describe the different types of rocks to be found on the Earth's surface and explain how each type is formed.

---

Definitions:

Student T-Distribution

A distribution of probability that occurs when the average of a population with a normal distribution is being estimated under conditions where the sample size is limited and the standard deviation of the population is not known.

Degrees Of Freedom

Degrees of freedom refer to the number of values in a statistical calculation that are free to vary when estimating some kind of parameter, influencing the shape of various statistical distributions.

Population Variance

A measure of the dispersion of all the values in a population, calculated as the average of the squared differences from the population mean.

Confidence Interval

An interval estimate around a sample mean within which an unknown population mean is expected to lie, at a certain confidence level.