Question

Two events e and f are​ __________ if the occurrence of event e in a probability experiment does not affect the probability of event f.

Answer 1

Two events e and f are​ independent if the occurrence of event e in a probability experiment does not affect the probability of event f. And if it opposite to that and affect the probability of event f, then two events are dependent.
When we collect the possible outcomes from a probability experiment, this is called an event and it may consist of one or more than one outcomes.