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 ...

This is a preview. Log in through your library . Abstract We wish to test that the hazard rate of survival or failure-time data is constant against the alternative of a change in hazard after an ...