You Were Told That the Amount of Time Lapsed Between

question 117

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 86% of the time lapsed will fall between which two numbers?

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Definitions:

Gross Profit Method

An inventory costing method that estimates the cost of goods sold and ending inventory based on the gross profit margin.

Inventory Valuation

The method used to calculate the cost of goods sold and ending inventory, such as FIFO, LIFO, or weighted average cost.

Casualty

An unexpected or sudden event causing loss or damage, often used in insurance to refer to accidents or mishaps causing physical harm or property damage.

Retail Basis

A method of inventory accounting where inventory is valued at retail prices, then converted to a cost basis using a predetermined cost-to-retail ratio.