Q.

The probability of a man hitting a target is 14  . He makes 4 trials. The probability that he will hit the target every time he tries is

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a

2150

b

811024

c

243256

d

1256

answer is D.

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Detailed Solution

n=4 p=14,  q=34 p(x=4)= 4C4(34)0(14)4=1256
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