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 large, flightless birds that have long legs and a long neck that protrudes from a round body. Males have bold black-and-white coloring that they use to attract females. Females, on the other hand, are light brown. 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.