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).
Certain Event: An event that must occur; it has a probability of 1. Combination: A group of elements from a set in which the order of the elements is not important. Complementary Events: Two events from the same sample space whose probabilities add up to 1. Complementary Probabilities: The probability of an outcome occurring and the probability that the same outcome will not occur.