normal distribution
: Normal Distribution
A theoretical frequency distribution of a dataset in which the distribution of values can be graphically represented as a symmetrical bell curve Normal
เว็บไซต์ normal distribution A theoretical frequency distribution of a dataset in which the distribution of values can be graphically represented as a symmetrical bell curve Normal 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 Characteristics of a Normal Distribution: · mean = median = mode A normal quantile plot shows a normal distribution as a straight line instead of as a bell curve If your data are normal, then the data values will fall close 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%
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