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).
The ostrich is the largest living species of bird and lays the largest eggs of any living bird (extinct elephant birds of Madagascar and the giant moa of New Zealand laid larger eggs).The ostrich's diet consists mainly of plant matter, though it also eats invertebrates.It lives in nomadic groups of 5 to 50 birds.he ostrich is the largest living species of bird and lays the largest eggs of any living bird (extinct elephant birds of Madagascar and the giant moa of New Zealand laid larger eggs).