Answer Happy

Note On 2.20(e), treat the other/orative Assigned Exercise 1.1 1.1. 15 students respond to an online quantitaire. We sample 3 students at random one at a time without replacement to receive bookstore credit. Suppose that the 15 students consist of 5 sophomores, 5 juniors, and 5 Seniors (a) Let the sample space s be the set of all Ordered triples of students in the order they were chosen Let A be the event that all three students in the sample have the same grade level". Let B be the event that all the students luwe different grade levels In each part count the given set (sample space at event). #S stands for sine or cardinality of the set s. Show your work (1)#() #ART #B-T (b). Instead, tallers villerentsmiple space that consists of all ordered complet, or 3-element of students, in which the order of the studenta sampled does not matter. For this sumple space, let V be the event that at least one sophomore is in the sample Find (0 =