Suppose S and T are mutually exclusive events. Find P (S or T). P (S) = 20%, P (T) = 22%

S and P are mutually exclusive events.

P (S) = 20% = 0.20

P (T) = 22 % = 0.22

The probability of mutually exclusive events:

P (S or T) = P (S) + P (T)

P (S or T) = 0.20 + 0.22 = 0.42

Answer: The probability of (S or T) is 0.42 or 42 %.