The amount of natural gas that Taylor Exploration extracts daily at its Cane Creek site in Utah has a normal distribution, with an average of 82,300 cubic feet and a standard deviation of 12,400 cubic feet.On a randomly selected day, how likely is it that less than 110,000 cubic feet are extracted?
A).9871
B).8974
C).9443
D).8257
E).9028

Question

Quizplus · Accepted Answer

The Z-score for 110,000 cubic feet is calculated as (110,000 - 82,300) / 12,400 = 2.23. Using the standard normal distribution table, the probability of a Z-score less than 2.23 is approximately 0.9871.

The Amount of Natural Gas That Taylor Exploration Extracts Daily