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).
Ostriches are bigger than any other bird in the world. They can grow up to 9 feet (2.7 meters) tall and can weigh up to 320 lbs. (145 kilograms), according to the African Wildlife Foundation, and an ostrich's eyes are 2 inches (5 centimeters) in diameter â the largest of any land animal. The ostrich is the only bird that has two toes on each foot.