Hi Prasanth,

Thank you, after you center/scale your data you might get covariance value between -1 and 1. It is possible but it doesn't mean that boundaries are going to be -1 and 1. Covariance can get really close to 1 or pass it or can be really far from -1 and 1. There is no guarantee for that. But if you want to compare two variable according to their covariance, you can do the comparison after you scale or normalize both variable. If you want to get a value between -1 and 1, I recommend you to use correlation instead of covariance.