Reference Article: Facts about phi, the golden ratio. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The number phi, often known as the golden ...

In mathematics, a rate is a ratio between two measurements with different units. If the unit or quantity in respect of which something is changing is not specified, usually the rate is per unit time.

This is a preview. Log in through your library . Abstract Formulae are presented for the prediction of the correlation between a ratio and its denominator in terms of the correlation between the ...