Part of a series of four pamphlets providing real-life problems in probability and statistics for the secondary school level, this booklet shows how to organize data in tables and graphs in order to get and to exhibit messages. Elementary probability concepts are also introduced. Fourteen different problem situations arising from biology, business, social sciences, and sports are included. This booklet was designed for students having a background knowledge of arithmetic, rates, and percentages. For other booklets and teachers' guides in this series, see SE 016 798 through SE 016 805. (DT)