[SIPTA] Question about the word "gamble"

Hello:

Can someone answer this question?

Was it Walley who initiated the word “gamble” to use in place of the classical “random variable”? De Finetti uses “random quantity”, as does Williams. “Gamble” is ubiquitous in the current literature, but I have not seen it anywhere prior to Walley’s 1991 book. Walley does not seem to attribute the term to anyone else.

Mik Bickis