It's the first time that the roommates have played each other in rock-paper-scissors, so there is no history of the choices made by either roommate. However, roommate A thinks that the three possibilities for his roommate's choice of hand signal are not equally likely. Based on his roommate's behavior in other similar games, roommate A believes that there is a 0.28 probability that his roommate will choose rock and a 0.17 probability that his roommate will choose paper. The probabilities are assigned using the . Suppose that roommate A's probability assignments are correct. What can you say about P(SB ), the probability that roommate B chooses scissors? Check all that apply. P(SB ) = 0.31 P(SB ) = 0.13 0 P(SB ) 1 1 P(SB ) 2 0 P(SB ) 0.1