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).
We give as an example the definition of the independence of two random events. Let A and B be two random events, and P(A) and P(B) their probabilities. The conditional probability P(BÇ A) of the event B under the condition that A occurs is defined by the equality.