Kathryn is having a birthday party. She sent out 8 invitations but perhaps not all invitees will be able to attend. Below is the probability distribution for the number of guests who will be able to come to her party. X = x P(X = X) 17. What is the probability that between and including 5 and 7 guests will attend? 0 0.05 0.05 a. .31 b. .29 c. .14 d. .41 0.10 0.15 18. What is the probability at most 3 guests will attend? 0.20 0.15 a. .35 b. .30 C. .10 d. .20 0.14 0.12 19. What is the probability that exactly 8 guests will attend? ? a. .04 b. .06 c. .14 d. .16 20. If you score a 72 on your first test which data set would put your score at the highest percentile? A. Class A: x = 75 and , s = 2 C. Class B: x = 66 and , s = 2 B. Class C: x = 70 and , s = 0.5 D. Class C: x - 68 and , s = 4