Skip to main content
All Questions

Three face-down cards show n, n+1 and n+2 for an unknown n. You may flip up to three and keep the last one you flip. What strategy maximises your expected value?

Unlock detailed company stats for this questionUpgrade

Community answers

No answers contributed by the community yet.

Related questions

Three Uniform(0,1) numbers are shown one at a time and you win if the one you keep is the largest. What rule for the first number maximises your chance?n independent uniform draws are shown one at a time and you may accept only one, at the moment it is shown. What stopping rule maximises the expected value of the draw you accept?Flip four fair coins and win $1 for each head. You may flip the tails again once. What is the expected value of the game?

Related courses

Course

SQL Interview Prep Course

Prepare for SQL interviews with lessons on joins, aggregations, and window functions, then practice real SQL interview questions in an interactive editor with expert solutions.

Course

Data Science Interview Prep

Land your dream data science role at Google, Amazon, Microsoft, Meta, Apple, and other top companies. Learn from mock interviews, frameworks, and advice from senior candidates. Practice statistics, experimentation, coding, SQL, machine learning, behavioral interviews, and more.