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Hace 2 días · Learn about normal distribution, a common form of probability density function for continuous random variables. Find out its formula, properties, examples, graph, standard deviation, and z-table.
Hace 2 días · The normal distribution is a theoretical distribution of values for a population. Often referred to as a bell curve when plotted on a graph, data with a normal distribution tends to accumulate around a central value; the frequency of values above and below the center decline symmetrically.
Hace 4 días · Central limit theorem, in probability theory, a theorem that establishes the normal distribution as the distribution to which the mean (average) of almost any set of independent and randomly generated variables rapidly converges. The central limit theorem explains why the normal distribution arises.
Hace 21 horas · Log-normal distribution. In probability theory, a log-normal (or lognormal) distribution is a continuous probability distribution of a random variable whose logarithm is normally distributed. Thus, if the random variable X is log-normally distributed, then Y = ln (X) has a normal distribution.
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Hace 3 días · In probability and statistics, Student's t distribution (or simply the t distribution) is a continuous probability distribution that generalizes the standard normal distribution. Like the latter, it is symmetric around zero and bell-shaped.
Hace 4 días · Assessing Normality Evaluate how well a normal distribution fits a continuous variable using quantile plots and goodness-of-fits test.
