72195, Not quite.
Posted by Jormyr on Wed 31-Dec-69 07:00 PM
Double checked with Umi before I responded, but the 1d8 roll is generally set up as "If you roll a 1, success, the other 7 fail", so 1d8 is literally a 12.5% chance, and over the long run, progging once per 8 rounds, on average.
1d12 would be average of every 12 rounds, 1d4 average of every 4 rounds.
You're thinking about the average dice roll of that, given a 1d8 can roll 1, 2, 3, 4, 5, 6, 7, or 8 for a total of 36 out of 8 rolls, which puts the average roll at 4.5
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