ABSTRACTProfessional examples of a p‐chart and a c‐chart are presented as illustrations of a rather underdeveloped technique for administrative decision under risk. Each example shows preparation of the control chart, signals for review of strategy, appropriate management analysis, and results of action taken. A broad range of administrative control areas is suggested for each type of chart. In addition, sufficient computational formulas, information, and theory is included in compact form for the preparation and operation of five types of basic control cha