Day 7: NDA Maths

1. A.
   3
2. B.
   2
3. C.
   $\dfrac{5}{2}$
4. D.
   $\dfrac{3}{2}$

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1. A.
   I only
2. B.
   II only
3. C.
   Both I and II
4. D.
   Neither I nor II

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1. A.
   $-\frac{31}{49}$
2. B.
   $-\frac{37}{49}$
3. C.
   $\frac{31}{49}$
4. D.
   $\frac{37}{49}$

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1. A.
   $1-\dfrac{3}{5}\left(\dfrac{4}{5}\right)^6$
2. B.
   $1-\dfrac{3}{5}\left(\dfrac{4}{5}\right)^7$
3. C.
   $1-\dfrac{11}{5}\left(\dfrac{4}{5}\right)^6$
4. D.
   $1-\dfrac{11}{5}\left(\dfrac{4}{5}\right)^7$

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1. A.
   Coefficient of variation of X is strictly more than coefficient of variation of Y.
2. B.
   Coefficient of variation of X is strictly less than coefficient of variation of Y.
3. C.
   Coefficient of variation of X is same as coefficient of variation of Y.
4. D.
   Coefficient of variation cannot be determined from the given data.

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