Investopedia / Nez Riaz The term "bell curve" is used to describe a graphical depiction of a normal probability distribution whose underlying standard deviations from the mean create the curved ...

In the old days, you used tables of the standard normal distribution to calculate the number of standard deviations (Z) that relate to a cumulative probability of a standard normal distribution ...

As seen in the table below ... a continuous probability distribution can contain outcomes that have any value, including indeterminant fractions. A normal distribution, for instance, is depicted ...