Suppose s and t are mutually exclusive events. find p(s or t) if p(s) = 29% and p(t) = 49%.

Mutually exclusive means that the intersection of the events is empty: P(S and T) = 0.

P(S or T) = P(S) + P(T) = 29% + 49% = 78%

If events S, T are not mutually exclusive, then P(S or T) = P(S) + P(T) - P(S and T)

it has the same slope and a different y-intercept

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step-by-step explanation: