A sampling unit
a. must have one element.
b. may include several elements.
c. can not include more than one element.
d. is the number of units sampled.
Question 2
Assume two events A and B are mutually exclusive and, furthermore, P(A) = .2 and P(B) = .4.
a. Find P(A B).
b. Find P(A B).
c. Find P(A B).