The jumbo cactpot consists for 10,000 possible outcomes, from 0000 to 9999.

It's best to see it as four different number slots, the chance of any outcome in each number slot is 1 in 10 (as it's 0-9)

So let's say I pick 5842, there's a 10% chance of 5 being correct in the first slot, and a 10% chance of 8 being right in the second slot and so on.

The problem is, you don't need to get all the numbers, you also need to get them in order, which ensures that possibilities of winning anything at all is the smallest it could possibly be as your picking a single outcome from a list of 10,000 outcomes.

So to sum it... pick anything... it doesn't matter, there's no strategy or way to increase your chances to win this.