Book Description: Questions and answers encompass four general statistics-based themes on 408 flash cards: exploratory analysis, planning a study, probability, and statistical inference. 320 cards present multiple-choice questions and 80 more present free-response questions. All reflect question types and degree of difficulty found on the AP exam. This boxed set of 4 1/2" x 2 3/4" flash cards is designed with a punch hole in one corner of each card. The hole will accommodate a metal key-ring-style card holder enclosed with the cards. Using the holder, students can arrange the flash cards for their Q and A sessions in any sequence that suits their needsÃ¯Â¿Â½perhaps by general topic, or alternately by leaving out cards with questions and answers that test takers already know well.