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.
To know more about the normal distribution, here
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Answer:
- It is difficult to produce a highly detailed image of the brain.
Explanation:
Brain-imaging techniques are associated with the use of strategies that assist in either directly or obliquely imaging the structure, operation, or working of the human brain and the nervous system. It assists the researchers to evaluate the problems associated with the brain of a human.
As per the given description, the limitation of brain-imaging would not include that 'it is difficult to produce a highly detailed image of the brain' as brain-imaging allows us to produce even the 'activation maps reflecting flow of blood to several parts of the brain' through fMRI and various other techniques allows to image the functionality in order to know the problems within the brain. Therefore, this goes against the limitations.
<span>Detection of stimuli is a responsibility of the PNS while perception of the stimuli is a responsibility of the CNS.
</span>PNS stands for Peripheral Nervous System (PNS), while CNS stands for Central Nervous System.<span>
They are the two components of the nervous system, </span>central nervous system.
<span>The CNS consists of the brain and spinal cord, while the PNS includes all other nervous system tissue. </span>
Biological warfare (mustard gas)
