The Normal Distribution - Mathematics A-Level Revision

Characteristics of a Normal Distribution normal distribution

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

normal distribution The normal distribution is a continuous probability distribution that is symmetrical around its mean with most values near the central peak  A normal distribution is completely determined by its mean μ μ and its standard deviation σ σ , which means there are an infinite number of normal distributions The Normal Distribution The Standard Normal curve, shown here, has mean 0 and standard deviation 1 If a dataset follows a normal distribution, then about 68%

true โปรโมชั่น Any point from a normal distribution can be converted to the standard normal distribution with the formula z = standard deviation z for any