Scale Parameter - Rate Parameter

Some families of distributions use a rate parameter which is simply the reciprocal of the scale parameter. So for example the exponential distribution with scale parameter β and probability density

could equally be written with rate parameter λ as

Read more about this topic:  Scale Parameter

Famous quotes containing the word rate:

    “You are more than entitled not to know what the word ‘performative’ means. It is a new word and an ugly word, and perhaps it does not mean anything very much. But at any rate there is one thing in its favor, it is not a profound word.”
    —J.L. (John Langshaw)