⚡ 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 19d 08h 35m 17s19 days 8 hours 35 minutes 17 seconds.
A fair six-sided die is rolled repeatedly until some face appears for the second time (not necessarily on consecutive rolls). On average, how many rolls does this take?
For example, the sequence stops after rolls, and stops after rolls.
Related Problems