As the degrees of freedom increase, the t distribution approaches the "normal distribution".
<h3>What is normal distribution?</h3>
For independent, random variables, the normal distribution, often referred as the Gaussian distribution, represents the most significant probability distribution in statistics. Most people are familiar with the bell-shaped curve found in statistical reports.
Some key features regarding the normal distribution are-
A normal distribution is a probability distribution that is symmetrical around the mean, with most observations clustering around the central peak and probabilities tapering off equally in both directions.
Data points in both distribution tails are similarly uncommon.
Whereas the normal distribution appears symmetrical, it is not the only symmetrical distribution.
The Student's t, Cauchy, & logistic distributions, for example, are symmetric.
The normal distribution, like any other probability distribution, defines the how values of a variable is distributed.
Because it accurately captures the range of values for many natural occurrences, it's the most essential probability distribution in statistics.
Antioxidants causes aging process slow, the reason behind this is that antioxidants wipe up the reactive free radicals that generally harm our DNA.
Studies or research is correlational when there is a relationship between two variables, and we are not sure that change is one variable is due to the other.
Animals get the nitrogen they need by eating plants or other animals that contain nitrogen. When organisms die, their bodies decompose bringing the nitrogen into soil on land or into ocean water. Bacteria alter the nitrogen into a form that plants are able to use.