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The probability of a man hitting a target is 0.25. He shoots 7 times. What is the probability of his hitting at least twice?
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The probability of a man hitting a target is...
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Nov 20, 2021
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JackTerrance
The probability of a man hitting a target is 0.25. He shoots 7 times. What is the probability of his hitting at least twice? Select the correct answer from above options
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Nov 20, 2021
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JackTerrance
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Given that man shoots 7 times, so n=7 And probability of hitting target p = 0.25 or 1/4. ∴P(X=r≥2) =1-[p(r=0) +P(r=1)]
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