Totem of the Void

[BobGnarly]

If the item has a 15% chance to drop, then the chance for it not to drop in one run is 85% (or 0.85 for math purposes).

The chance for it not to drop in 2 runs is 0.85*0.85.

The chance for it not to drop in N runs is 0.85^N.

I'm not sure how you're coming up with numbers when he didn't say how many runs he did, but let's say it's 25:

0.85^25 = 0.017197... ~= 1.72% chance of happening.

[Fuzzyboy]

If the item has a 15% chance to drop, then the chance for it not to drop in one run is 85% (or 0.85 for math purposes).

The chance for it not to drop in 2 runs is 0.85*0.85.

The chance for it not to drop in N runs is 0.85^N.

I'm not sure how you're coming up with numbers when he didn't say how many runs he did, but let's say it's 25:

0.85^25 = 0.017197... ~= 1.72% chance of happening.

Yeah, like I wrote in a previous post:

Btw, assuming drop chance if 15%, the chance of not getting one in 25 runs is like 1.7%

The 0.75 pct from the second post was was a miscalculation (i typed wrong on the calc i guess) - if the drop chance is 20%, the chance of not getting one is in the area of 0.4 % (however the chance is 0.075% if the dropchance is 25% - perhaps that's what caused it).

The number 25 I just grabbed from thin air (one guy mentioned 23 runs. The original poster didn't mention a number, but I'm assuming it's more than 25 since I took 32 runs and still wasn't exalted in spite of having done a good deal of sha'tar quests before the runs. The exact number isn't really important - I was simply trying to establish that while the chance of not getting one in x amount of runs (25 being the random choice) was very small it was still an possibility.

[Diamndzngunz]

I think I did about 7 runs, was not to bad. They go fast.

[CokeZero]

I did 3 more runs this morning before I went to work, I keep getting those damn cloth robes, cloth shoulders, or the friggin boots. I've seen the cloak twice...

I started at about half way through friendly and soon as I hit exalted I threw my hands up and thought WTF?! All I do is kill the 2 mini-bosses and the 1st boss, then open the cache, I stopped keeping track of how many runs I've already done lol.

And I will continue to run mech up to the cache until I DO get all 5 needed lol. On the plus side I've built up a ridiculous amount of enchanting mats.

[Fleecy]

I too went from Friendly to Exalted and I've only had it drop twice for me. I've given up trying to farm for it now.

I tried farming for it, just killing all the trash necessary (and the first boss), zone out, reset, rinse & repeat.

TWO!

[CokeZero]

OMG! Did a run right after my last post and got my first one!!! WOOT 4 more to go folks!

[Skuggomann]

i need 3 moar too, soo boring xD

[cepheus]

Not sure how many runs I needed for my 5, but I was about halfway to exhalted when I got all of them

[Hetzer]

how long is the run taking? i am about to hit 70 within the month and i am starting to dread the amount of runs needed ;(

[Crayonbox]

Oh man.. I feel for you. I got all 5 of mine in 9 runs. No joke. The first 3 times I ran it - it dropped 3 times in a row. It's really just luck.

I don't think you understand how much I hate you. It took me 4 days of farming mech to do it. I got 140~ Large prismatics before I got all 5 totems >_<