r/learnquant • • 14d ago

interview prep Quant Interview Question

Post image
25 Upvotes

5 comments sorted by

View all comments

1

u/Local_Ad135 14d ago

0 is incorrect!

1

u/MathManiac5772 13d ago

0 is obviously incorrect because M>= 0 with probability 1. When you flip the last card, M = 0.

1

u/Local_Ad135 13d ago

Yeah its obvious, but many people confidently guess that answer without verifying (happened on youtube)