the probability of event A is
p(A) = 0.38
and
p(B) = 0.33
so,
P(A or B ) = P(A U B) fully independent
as event A and event B is two different event ,
P (A U B) = p(A) + p(B)
= 0.38 + 0.33
= 0.71
thus, the answer is 0.71
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