What Cashiers Do About this section Cashiers process returns and exchanges of merchandise. Cashiers process payments from customers purchasing goods and services.
Statistics and Probability Dictionary. Select a term from the dropdown text box. The online statistics glossary will display a definition, plus links to other related web pages. Select term: Conditional Probability. The probability that event A occurs, given that event B has occurred, is called a conditional probability. The conditional probability of A, given B, is denoted by the symbol P(A|B).
If events A and B are not independent, then the probability of the intersection of A and B (the probability that both events occur) is defined by. P(A and B) = P(A)P(B|A). From this definition, the conditional probability P(B|A) is easily obtained by dividing by P(A):