1
IIT-JEE 1980
MCQ (Single Correct Answer)
+2
-0.5
The probability that an event $$A$$ happens in one trial of an experiment is $$0.4.$$ Three independent trials of the experiment are performed. The probability that the event $$A$$ happens at least once is
2
IIT-JEE 1979
MCQ (Single Correct Answer)
+1
-0.25
Two fair dice are tossed. Let $$x$$ be the event that the first die shows an even number and $$y$$ be the event that the second die shows an odd number. The two events $$x$$ and $$y$$ are:
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