You Were Told That the Amount of Time Lapsed Between

question 92

Short Answer

You were told that the amount of time lapsed between consecutive trades on the New York Stock Exchange followed a normal distribution with a mean of 15 seconds. You were also told that the probability that the time lapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. The probability that the time lapsed between two consecutive trades would fall below 13 seconds was 7%. The middle 60% of the time lapsed will fall between which two numbers?

---

Definitions:

Anvil

A small iron block used in metalworking as a surface upon which metals are shaped.

Tympan

Another term for the tympanic membrane or eardrum, which vibrates in response to sound waves.

-Cusis

A suffix used in medical terms to denote hearing, as in presbycusis, age-related hearing loss.

Aur/i

A prefix related to the ear or hearing.