Q.
1

Covariance between X and Y series= -17.8 Standard deviation of X series = 6.6 Standard deviation of Y series = 4.2

No. of pairs of observation= 20

The co-efficient of correlation is:

 

  • A

    -0.642

     

  • B

    0.642

     

  • C

    0.253

     

  • D

    -0.253