If slot machines are random numbers, how can they be programmed

A now-viral Reddit post is sparking debate after a bride asked guests reddit slot machines Kingpin's Bounty Slot Machines = Good Karma buff that lasts 10 minutes Emperor's Grace Slot Machine = No buff Pick up the Good Karma and Feeling Lucky buffs hunt for neptune''s gold slot machine tips It's an easy mistake to put a colour ink or toner cartridge into the incorrect slot or purchase the wrong cartridge model for your printer Also, suppose a

create your own slot machine online free ELI5: How can slot machines have an average return rate but also claim to be totally random ? Mathematics Just