In its Fuel Economy Guide for 2016 model vehicles, the Environmental Protection Agency gives data on 1170 vehicles. There are a number of high outliers, mainly hybrid gas-electric vehicles. If we ignore the vehicles identified as outliers, however, the combined city and highway gas mileage of the other 1146 vehicles is approximately Normal with mean 23.0 miles per gallon (mpg) and standard deviation 4.9 mpg. Exercises 3.35 through 3.38 concern this distribution 3.37: The middle half. The quartiles of any distribution are the values with cumulative proportions 0.25 and 0.75. They span the middle half of the distribution. What are the quartiles of the distribution of gas mileage?
In its Fuel Economy Guide for 2016 model vehicles, the Environmental Protection Agency gives data on 1170 vehicles. There are a number of high outliers, mainly hybrid gas-electric vehicles. If we ignore the vehicles identified as outliers, however, the combined city and highway gas mileage of the other 1146 vehicles is approximately Normal with mean 23.0 miles per gallon (mpg) and standard deviation 4.9 mpg. Exercises 3.35 through 3.38 concern this distribution 3.37: The middle half. The quartiles of any distribution are the values with cumulative proportions 0.25 and 0.75. They span the middle half of the distribution. What are the quartiles of the distribution of gas mileage?
MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
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![In its Fuel Economy Guide for 2016 model vehicles, the Environmental Protection Agency
gives data on 1170 vehicles. There are a number of high outliers, mainly hybrid gas-electric
vehicles. If we ignore the vehicles identified as outliers, however, the combined city and
highway gas mileage of the other 1146 vehicles is approximately Normal with mean 23.0
miles per gallon (mpg) and standard deviation 4.9 mpg. Exercises 3.35 through 3.38 concern
this distribution
3.37: The middle half. The quartiles of any distribution are the values with cumulative
proportions 0.25 and 0.75. They span the middle half of the distribution. What are the
quartiles of the distribution of gas mileage?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F96ce4e79-a9b7-4338-8d9e-1cd0f12f5b89%2Fc7eee6c8-ee2b-4f21-82ab-b97195e7b6e5%2F1usmagh_processed.jpeg&w=3840&q=75)
Transcribed Image Text:In its Fuel Economy Guide for 2016 model vehicles, the Environmental Protection Agency
gives data on 1170 vehicles. There are a number of high outliers, mainly hybrid gas-electric
vehicles. If we ignore the vehicles identified as outliers, however, the combined city and
highway gas mileage of the other 1146 vehicles is approximately Normal with mean 23.0
miles per gallon (mpg) and standard deviation 4.9 mpg. Exercises 3.35 through 3.38 concern
this distribution
3.37: The middle half. The quartiles of any distribution are the values with cumulative
proportions 0.25 and 0.75. They span the middle half of the distribution. What are the
quartiles of the distribution of gas mileage?
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3.37)
The mean is 23.0 and the standard deviation is 4.9.
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