Section 2. Suppose that you work for a government sector for water resources management. Your section is responsible for estimating the required amount of water for household use. Assume that the volume of daily water use per household in North America follows a normal distribution. The mean volume of daily water use is 138 gallons per household and the standard deviation is 46 gallons.
Section 2. Suppose that you work for a government sector for water resources management. Your section is responsible for estimating the required amount of water for household use. Assume that the volume of daily water use per household in North America follows a normal distribution. The mean volume of daily water use is 138 gallons per household and the standard deviation is 46 gallons.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
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Using the image answer the following.
Find the probability that a randomly selected household in North America uses less than 69 gallons of water per day. Calculate the z-vaule using the formula and find the probability using the z- table or calculator.
Expert Solution
Step 1: Introducing the given information
We have given that
Mean() = 138
standard deviation() = 46
X~N(138,46)
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