Give examples of experiments the results of which are not equiprobable events.

Equiprobable or equiprobable events are events with the same probability of occurrence. Accordingly, we need to come up with events, the probability of which will be different, for example:
1) The basket contains 5 white balls and 2 black ones, find the probability that a randomly taken ball will turn out to be white;
2) Find the probability that a number less than 3 will appear on the roll of the dice;
3) In a class of 17 boys and 14 girls, find the probability that a randomly selected student will be a boy.

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