>>531042684
Oh honey... that's not a lot of runs at all. Both of those raids have 2 mount drops, so let's just say you had 18 chances for a mount to drop with roughly 5% droprate:

>You killed 18 monsters for an item with a 1/20 (5.000000% or 1/20.00) drop chance. You had a:
>39.72143185% chance (1/2.52) of getting exactly 0 drops,
>60.27856815% chance (1/1.66) of getting more than 0 drops,

https://oldschool.runescape.wiki/w/Calculator:Dry_calc