What is a Standard Normal Distribution? Previously, you learned about the normal (or Gaussian) distribution, which is characterized by a bell shape curve. We also identified the mean and standard ...

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Where \(X\) is a normally distributed random variable with mean \(\mu\) and standard deviation \(\sigma\). The peak of the curve occurs at \(x=\mu\), and the spread ...

Percentiles are an important statistical tool used to understand the distribution of data. They indicate the relative standing of a particular value within a data set. In this article, we will delve ...