The box fits
pens are taken off the box randomly. How many elementary consequences are possible here?
During the exam session, professor graded his students' tests. Out of
students failed the test. What was the probability
not to fail this test?
red pens in the box. What is the least amount of pens you should randomly pick to pick a blue pen with guarantee?
A group of scientists are providing an experiment on simultaneous tossing of
coins. The result of the experiment is the final amount of tails that will drop out. How many possible consequences can be at the end of this experiment?
After some calculations, it was determined that the probability of hitting the target is
. Is it possible that after
shots there will be
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