mutually exclusive events
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Related to mutually exclusive events: Independent events
mutually exclusive events[¦myü·chə·lē ik¦sklü·siv i′vens]
Two or more events such that the occurrence of any one makes impossible the occurrence of any of the others.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.