1. In a survey, students are asked how many hours they study in a typical week. The five- number summary of the responses is: 6, 7, 9, 12, 17. Which interval describes the number of hours spent studying in a typical week for about 25% of the students sampled? I. 6 to 7 II: 6 to 9 50 M. of the mecomment III. 7 to 9 IV. 7 to 12 V. 9 to 12 -3 (a) I and III (b) II and IV is bettinge the the meadjam (c) I, III, and V (d) II, IV, and V (e) I, II, III, and V