The set S = {a, b, c, d} is the sample space for an experiment. Find the probability that outcome c occurs if it is known that outcome d is twice as likely to occur as outcome c, outcomecis twice as...

Extracted text: The set S = {a, b, c, d} is the sample space for an experiment. Find the probability that outcome c occurs if it is known that outcome d is twice as likely to occur as outcome c, outcomecis twice as likely to occur as outcome b and outcome b is twice as likely to occur as outcome a. O A. O B. OD. O E. Cannot be determined.