Three persons have been tested for the occurrence of gene g. Based on this random experiment, three random events are introduced as follows: A = 'no person has gene g' B='at least one person has gene...

Three persons have been tested for the occurrence of gene g. Based on this random experiment, three random events are introduced as follows:

A = 'no person has gene g'

B='at least one person has gene g'

 C = 'not more than one person has gene g'

(1) Characterize verbally the random events A ∩ B, B ∪ C and (A ∪ B) ∩
.

(2) By introducing a suitable sample space, determine the sets of elementary events which characterize the random events occurring under (1).