Question 1
Use the special addition rule and the following probability distribution to determine P(X ≥ 8).
x 5 6 7 8 9 10 11
P(X = x) 0.05 0.05 0.20 0.15 0.15 0.10 0.30
◦ 0.30
◦ 0.45
◦ 0.70
◦ 0.15
Question 2
Use the special addition rule and the following probability distribution to determine P(X = 6).
x 5 6 7 8 9 10 11
P(X = x) 0.05 0.05 0.20 0.15 0.15 0.10 0.30
◦ 0.10
◦ 0.05
◦ 0.95
◦ 0.90