Question: Was Bella Subbotovskaya or Aleksandr Khinchin born first?
Sentence (from "Khintchine inequality"): Heuristically, it says that if we pick formula_1 complex numbers formula_2, and add them together each multiplied by a random sign formula_3, then the expected value of the sum's modulus, or the modulus it will be closest to on average, will be not too far off from formula_4.
Relevant evidence: No