In statistics, the coefficient of determination R2 is the proportion of variability in a data set that is accounted for by a statistical model. In this definition, the term variability is defined as the sum of squares. There are equivalent expressions for R2 based on an analysis of variance decomposition.
On average, an ostrich egg weighs about 1.4 Kg (3.1 pounds). On average, an ostrich egg weighs about 1.4 Kg (3.1 pounds).
Characteristics: An ostrich egg is a chicken egg on steroids, says Todd Appelbaum, owner of Roaming Acres ostrich farm in Andover, New Jersey. Each giant ostrich egg is equivalent to about 24 chicken eggs. The shells are thicker and a little tougher to crack than a standard chicken egg. Appelbaum uses a butter knife to crack them open, but says that many people like to drill a hole, drain the egg, and use the shell for crafts and home decorations.