normal distribution
Normal Distributions
A theoretical frequency distribution of a dataset in which the distribution of values can be graphically represented as a symmetrical bell curve Normal
If a set of n observations is normally distributed with variance σ2, and s2 is the sample variance, then s2σ2 has a chi-square distribution with n–1 Properties of a Normal Distribution · The normal curve is symmetrical about the mean; · The mean is at the middle and divides the area into two halves; · The
ole777 ทางเข้า The standard normal distribution table gives the probability of a regularly distributed random variable Z, whose mean is equivalent to 0 and the difference Examples using Normal Distribution Formula Example 1: If X∼N X ∼ N , find P P using normal distribution formula Example 2:
