Which of the following probabilities for the sample points A,B,and C could be true if A, B and C are the only sample points in an experiment?
a- P(A)= 1/8, P (B) = 1/7, P(C)= 1/10
b. P(A)= 1/4 P(B)=1/4, P(C)=1/4
c. P(A)= -1/4, P(B)= 1/2 P(C)=3/4
d. P(A)=0, P(B)= 1/14, P(C)=13/14.
P(A) + P(B) + P(C)
= 0 + 1/14 + 13/14
The sum of the probabilities is ascertained.