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.
The Normal Curve. The graph of the normal distribution depends on two factors-the mean and the standard deviation. The mean of the distribution determines the location of the center of the graph, and the standard deviation determines the height and width of the graph.