The number of Btu's of petroleum and petroleum products used per person in a certain year was normally distributed with mean 153 Btu's and standard deviation 25 million Btu's. Approximately what percentage of the population used between 128 Ind 178 million Btu's during that year? Approximately what percentage of the population used in excess of 228 million Btu's?
The number of Btu's of petroleum and petroleum products used per person in a certain year was normally distributed with mean 153 Btu's and standard deviation 25 million Btu's. Approximately what percentage of the population used between 128 Ind 178 million Btu's during that year? Approximately what percentage of the population used in excess of 228 million Btu's?
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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![] The number of Btu's of petroleum and petroleum products used per person
in a certain year was normally distributed with mean 153 Btu's and standard
deviation 25 million Btu's. Approximately what percentage of the population
used between 128 1nd 178 million Btu's during that year? Approximately
what percentage of the population used in excess of 228 million Btu's?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3ef7c661-4c5e-4ac9-89f8-7515d559cacf%2F7c6e8fb9-485c-455e-ab78-9d82244eea20%2Fswt53uo_processed.jpeg&w=3840&q=75)
Transcribed Image Text:] The number of Btu's of petroleum and petroleum products used per person
in a certain year was normally distributed with mean 153 Btu's and standard
deviation 25 million Btu's. Approximately what percentage of the population
used between 128 1nd 178 million Btu's during that year? Approximately
what percentage of the population used in excess of 228 million Btu's?
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