Chance of any rain and expected volume.
It doesn't take too much of a stretch to think of reach and frequency here; how many people see an ad at all, and the expected times a person sees it.
Or penetration and purchase frequency; percentage of people who bought (fanta) at all and the average number of times they buy it.
Simple and clever. Add to that they way BOM has couched these predictions in probabilistic terms. I'm a probability and randomness tragic, so they're speaking my language.
BOM are using the language of (some) marketers there, and I like it.
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