Question

X be the number of days that the group has been lost. let d(x) be the probability of a rescue by dolphin pod on day x. each day the dolphins vote on if they will take you back or if they want to keep you as pets for another day. there are 13 dolphins each individual dolphin has a (10*x)% chance of voting to take you back on day x, and at least 6 dolphins must vote to take you back for the pod as a whole to decide to do so. if fewer than 6 dolphins vote to take you back, they leave you stranded for another day. if being rescued by dolphin were your only means of getting off the island, how many days would you expect to be stranded?

Answer 1

Sorry I don't know the answer