Glove scrolling probability help

You can't add probability.

Chance of 9 10%s failing in a row = 38%, so that means the odds of at least 1 working is only 62%. Of course that includes multiple successes. But those are only a small fraction.

one question, how did you come to the fact i added there?

cause if i use the same logic as i used, i end up at a 38ish chance of failing 9 too.

or are you talking about how i added 9 to get that 90 10s would work him out 9 gloves with 3attack 4 slots.