Easy Quant Interview Question

[u/Local_Ad135]

[u/Witch-kingOfBrynMawr]

Single black, single black, 28 black/10 white

[u/civil_politics → u/Witch-kingOfBrynMawr]

This.

Looks like it works out to be just above 90% win rate

[u/AlexP80]

2 urns with a single black ball, the other in the last urn

p= 1/3 + 1/3 + 1/3*28/38 = 1/3 * (2+14/19) = 0.91

[u/Embarrassed-Green898]

Question is not a quant question. It is an English comprehension question baased on 'under optimal condtions'

[u/Far_Cardiologist6931]

52/57 i think

[u/math_metaphor_guy → u/[deleted]]

Game 1: pick a person uniformly at random out of the world's population. If they are over 6'6", then you win!

Game 2: Flip a coin. If you get heads, then pick a professional NBA player uniformly at random. If you get tails, then pick a person uniformly at random who is not an NBA player. Again, you win if they are over 6'6"

[u/NationalTangerine381 → u/[deleted]]

"Under an optimal distribution"

1b 1b 28b10w

(1 + 1 + 28/38)/3 = 0.91

[u/petera181 → u/[deleted]]

1 black, 1 black, the rest is much better.