Adderall is a blend of four different amphetamine salts. Like Ritalin, Adderall keeps norepinephrine and dopamine working in the brain. But Adderall does something that Ritalin doesnât. It makes the cells pump out more of the neurotransmitters.
A standard normal distribution table shows a cumulative probability associated with a particular z-score. Table rows show the whole number and tenths place of the z-score. Table columns show the hundredths place. The cumulative probability (often from minus infinity to the z-score) appears in the cell of the table.
Cumulative Distribution Function. The formula for the cumulative distribution function of the standard normal distribution is. \(F(x) = \int_{-\infty}^{x} \frac{e^{-x^{2}/2}} {\sqrt{2\pi}} \). Note that this integral does not exist in a simple closed formula.It is computed numerically.he equation for the standard normal distribution is. \(f(x) = \frac{e^{-x^{2}/2}} {\sqrt{2\pi}} \). Since the general form of probability functions can be expressed in terms of the standard distribution, all subsequent formulas in this section are given for the standard form of the function.