Probability, Statistics, Distributed Systems, Software Engineering, Interview Questions.
for the 1st time. Thus from above (number of trials until success) E[Xi] = 1/(1-p) = N/N-i+1 E = N*(1/N + 1/N-1 + 1/N-2 + ….+ 1) In an in-memory cache like Redis, what is the expected number of queries before all cache entries are accessed? This is a similar problem as above (Coupon Collector’s