Question

9. The following statements are true except, the  

A, sum of the probabilities of two complementary events of a statistical experiment is 1.

B, sum of the probabilities of all the sample points of a statistical experiment is 1.

C. sum of the probabilities of two mutually exclusive events of statistical experiment is 1.

D. sum of the probability of one or the other mutually exclusive events happening in less or equal to 1.

Answer 1

C. sum of the probabilities of two mutually exclusive events of statistical experiment is 1.