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Because of the Central Limit Theorem, the mean value of sets of observations is distributed Normally. Irrespective of the underlying distribution of a variable, the distribution of a sum (or mean) of such variables tends towards the Normal distribution. So, for sufficiently large samples, all distributions can be approximated by thye Normal distribution.
One of the consequences is that the distribution has been studied extensively and a lot is known about tests based on it.
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Is normal distribution a discrete probability?
No. Normal distribution is a continuous probability.
Is normal distribution also a probability distribution?
Yes. When we refer to the normal distribution, we are referring to a probability distribution. When we specify the equation of a continuous distribution, such as the normal distribution, we refer to the equation as a probability density function.
Does a normal probability distribution include a bimodal distribution?
No, the normal distribution is strictly unimodal.
What is Normal of probability distribution?
with mean and standard deviation . Once standardized, , the test statistic follows Standard Normal Probability Distribution.
What is The normal probability distribution with µ equals 0 and σ equals 1?
It is the Standard Normal distribution.
