Question

To find the probabilities, mutually exclusive events are _______

a) Subtracted
b) Multiplied
c) Added
d) Added and then multiplied

Answer 1

c) Added
Since mutually exclusive events cannot happen at the same time, it's either one or the other in the case of two events.
Example: The first card you pick is a king and the first card picked is a queen are mutually exclusive. You can't pick both king and queen in one draw.
If two events are mutually exclusive, we add the probabilities (:
Hope I helped!

Answer 2

the question is poorly written

you add the probabilities if the events are mutually exclusive and the question involves 'or'.

so if A and B are m.e. then

P(A or B)=P(A)+P(B)