No. Normal distribution is a continuous probability.
A bell shaped probability distribution curve is NOT necessarily a normal distribution.
When its probability distribution the standard normal distribution.
The normal distribution, also known as the Gaussian distribution, has a familiar "bell curve" shape and approximates many different naturally occurring distributions over real numbers.
No, the normal distribution is strictly unimodal.
Normal distribution is the continuous probability distribution defined by the probability density function. While the binomial distribution is discrete.
It is a continuous parametric distribution belonging to the family of exponential distributions. It is also symmetric.
Because very many variables tend to have the Gaussian distribution. Furthermore, even if the underlying distribution is non-Gaussian, the distribution of the means of repeated samples will be Gaussian. As a result, the Gaussian distributions are also referred to as Normal.
True * * * * * No. The Student's t-distribution, for example, is also bell shaped.
The total area of any probability distribution is 1
with mean and standard deviation . Once standardized, , the test statistic follows Standard Normal Probability Distribution.