A symmetrical distribution is one where splitting the data down the middle produces mirror images. Bell curves are a commonly-cited example of symmetrical distributions.

Key Points Normality refers to how your data fits into a normal distribution. You can find out if your data is uniform by ...

Normal distribution is a continuous probability distribution wherein values lie in a symmetrical fashion mostly situated around the mean.

Mirror symmetry implies that the probability distribution can, to some extent, reduce redundant information through symmetric transformations, thereby lowering the system's entanglement.