Question

If you know how to do math 30 probability please help answer this question

three events, A, B, C are all equally. If there are no other possible events which of the following statements is true?

a) P(A) = 0

b) P(B) = 1

c) P(C) = 1/3

d) P(D) = 1/2

Answer 1

Answer: c) P(C) = 1/3

Explanation:

P(A) + P(B) + P(C) = 1 (100%)

P(A) = P(B) =P(C)

Using substitution:

P(C) + P(C) + P(C) = 1

3 P(C) = 1

P(C) = 1/3