⚡ Build the skills to land top-paying quant jobs. Offer ends in --d --h --m --s-- days -- hours -- minutes -- seconds.
⚡ Build the skills to land top-paying quant jobs. Offer ends in 18d 21h 40m 35s18 days 21 hours 40 minutes 35 seconds.
You flip a fair coin repeatedly and may stop whenever you want. Your strategy is to stop the first time the fraction of heads among all flips so far is strictly greater than (this happens eventually with probability ). Let be the fraction of heads (number of heads divided by total number of flips) at the moment you stop. What is ? Give an exact answer.