في هذا السؤال مثال عن المتواليات ومثال عن الاحتمالات
Among a group of 2,500 people
, 35 percent invest in municipal bonds,
18 percent invest in oil stocks,
and 7 percent invest in both
municipal bonds and oil stocks.
If 1 person is to be randomly selected from
the 2,500 people, what is the probability
that the person selected will be one who invests
in municipal bonds but NOT in oil stocks?
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