normal distribution

normal distribution   Dan normalization

A normal distribution is a type of continuous probability distribution in which most data points cluster toward the middle of the range, while the rest taper

If you leave out the μ and σ, then the default is the standard normal distribution For a left-tail area use a lower bound of –1E99 (negative The total area under the normal curve is equal to 1 And, the probability that a normal random variable X is less than positive infinity is equal to 1; that is,

เมืองหลวงฝรั่งเศส A standard normal distribution has a mean of 0 and standard deviation of 1 This is also known as the z distribution You may see the notation (N(mu, sigma The normal distribution is also called the Gaussian distribution or bell curve A normal distribution has two parameters, the mean μ μ , and the variance σ2