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.
Rows of X correspond to observations and columns correspond to variables or coordinates. y = mvnpdf(X,MU) returns the density of the multivariate normal distribution with mean mu and identity covariance matrix, evaluated at each row of X. MU is a 1 -by-d vector, or an n-by-d matrix.