A high school gym teacher randomly selects a group of two players from three students to demonstrate a basketball drill during class. The three students consists of two girls, Andrea and Marta, and one boy, Davi. The sample space of possible groups is listed below. Let A be the event that the first player the coach chooses is a girl and B be the event that the second player is a boy. What is P(A or B), the probability that the coach chooses a girl first or a boy second? Group 1 Andrea Marta Group 2 Andrea Davi Group 3 Marta Andrea Group 4 Marta Davi Group 5 Davi Andrea