number of females that display estrus during the period. That is, all females must respond to treatment and dis-. play estrus if a 50 to 60 percent pregnancy rate is to be. achieved in a single service.
Proposal letter to building/zoning department, requesting a large variance for allowing a property fence to be built for the privacy of a home purchaser.
Variance is a measure of the dispersion in outcomes around the expected value. It is used as an indication of the risk inherent in the security. Standard deviation is the square root of variance. Ex ante variance calculation: