Problem: Monster drops item 1/10 of the time. I can only have 4 monster at a time per trial/save. So if I have 4 monsters that drop 1/10 of the time... my chance of getting at least 1 item is 40% a try instead of with just 1 monster a try at 10%?
Problem: Monster drops item 1/10 of the time. I can only have 4 monster at a time per trial/save. So if I have 4 monsters that drop 1/10 of the time... my chance of getting at least 1 item is 40% a try instead of with just 1 monster a try at 10%?
No. Calculate the probability of no drops and subtract that number from 1.
Alternatively:
X is the random variable number of drops.
X ~ Binomial(n = 4, p = 1/10) .