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).
First and foremost, a p value is simply a probability. However, it is a conditional probability, in that its calculation is based on an assumption (condition) that H0 is true. This is the most critical concept to keep in mind as it means that one cannot infer from the p value whether H0 is true or false.