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On a multiple choice examination with 4 ...

On a multiple choice examination with 4 possible answers for each of 6 questions the probability that a student would get at least two correct answers just by guessing is -

A

`(3367)/(4096)`

B

`(1319)/(2048)`

C

`(2187)/(4096)`

D

`(1909)/(4096)`

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The correct Answer is:
D
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CHHAYA PUBLICATION-MCQ ZONE -Question Paper 8
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  6. The equation of the plane passing through the point (1, -2, 3) and per...

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  8. The vector equation of the plane passing through the point (1, -1, 2) ...

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  9. If the vectors veca= 3x hati+4y hatj-12hatk and vecb=3x hati-4y hatj+1...

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  10. If veca, vecb, vec c are three mutually perpendicular vectors and |vec...

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  11. Find the range of the function f(x) =abs(x - 1) + abs(x - 2) , -1 le x...

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  14. The value of lim(x to 0) (1-3x)^((3)/(x)) is equal to -

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  16. If x=a cot theta and y=(1)/(x^(2)+a^(2)), then the value of (d^(2)...

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  17. If y=(sin^(-1)x)^(2)+(cos^(-1)x)^(2), then which of the following is...

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  18. If y=e^(m sin^(-1)x), then the value of [(d^(2)y)/(dx^(2))](x=0) is ...

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  19. If x sqrt(1+y)+y sqrt(1+x)=0 then the value of (dy)/(dx) is -

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  20. If x^(2)+y^(2)=t+(1)/(t) and x^(4)+y^(4)=t^(2)+(1)/(t^(2)), then the ...

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