A 12 sided die is rolled. Event A is {1, 5, 7} and event B is {5, 9, 11, 12}. What is P(A or B)?
Question 3 options:
A. 1/12
B. 6/12
C. 4/12
D. 7/12
P ( A or B) = P(A) + P(B) - P(A and B) = 3/12 + 4/12 - 1/12 = 6 / 12
+1982 
