the probability that an event happens in one trial of an experiment is 0.4 . three independent trials of the experiment are performed. find the probability that the event happens at least once???
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Answered by
37
Answer:
0.784
Step-by-step explanation:
the probability that an event happens in one trial of an experiment is 0.4 . three independent trials of the experiment are performed. find the probability that the event happens at least once???
probability that an event happens in one trial of an experiment = 0.4
Probability of that event not happening in one trial = 1 - 0.4 = 0.6
probability that the event happens at least once in three trails
= 1 - Probability of that event not happening in all three trials
= 1 - (0.6)(0.6)(0.6)
= 1 - 0.216
= 0.784
probability that the event happens at least once = 0.784
Answered by
2
Answer:
Step-by-step explanation:
Total-Neither
1-(0.4*0.4*0.4)=0.936
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