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flowergirly34
15.08.2020 •
Mathematics
G Assuming that P(x) is a Vector Space, prove that for all positive integer n
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Ответ:
Let
be the event that there are no birthdays in the
season. The probability that all seasons occur at least once is
Note that
Using the inclusion-exclusion principle and the symmetry of the seasons,
Now find:
Thus,
The probability that all 4 seasons occur at least once is
0.51.