There are 50 questions in an exam. A str...

There are 50 questions in an exam. A strudent's probability that he is unable to correctly answer less than 2 questions

`(201)/(5)(415)^(50)`

`(201)/(5)((1)/(5))^(50)`

`(201)/(5)((1)/(5))^(49)`

`(201)/(5)((4)/(5))^(49)`

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