Question

Suppose S and T are mutually exclusive events. Find P(S or T) if P(S) = 25%, P(T) = 13%.

Answer 1

P(S or T) = 38%

Here, given that the two events are mutually exclusive, we want to find P(S or T)

If two events are mutually exclusive, then they cannot occur at the same time

The formula to use as they are mutually exclusive is;

`P(S\text{ or T) = P(S) + P(T) = 25\% + 13\% = 38\%}`