The probability that an event A occurs in a single trial of an experiment is 0.6. In the first three independent trials of the experiment, the probability that A occurs atleast once is – - Study24x7
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731 followers study24x7 01 Jan 1970 05:30 AM study24x7 study24x7

The probability that an event A occurs in a single trial of an experiment is 0.6. In the first three independent trials of the experiment, the probability that A occurs atleast once is –

A

0.930

B

0.936

C

0.925

D

0.927

IIT Entrance Class 12 (PCM)
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  • Abhishek Kumar
    • Three independent trials of the experiment are performed. probability that an event happens in one trial of an experiment = 0.6 Probability of that event not happening in one trial = 1 - 0.6 = 0.4 Probability that the event happens at least once in three trails = 1 - Probability of that event not happening in all three trials = 1 - (0.4)(0.4)(0.4) = 1 - 0.064 = 0.936

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