Asked by Nguyen Danny on May 26, 2024
Verified
The Environmental Protection Agency records data on the fuel economy of many different makes of cars.Data on the mileage of 20 randomly selected cars are listed below.The values are ordered for convenience. What is the median mileage for these 20 cars?
A) 17.5 miles per gallon
B) 19 miles per gallon
C) 19.5 miles per gallon
D) 20 miles per gallon
Fuel Economy
A measure of how far a vehicle can travel on a specific amount of fuel; it's often used to assess energy efficiency in transportation.
Environmental Protection Agency
A U.S. federal agency responsible for the protection of human health and the environment by writing and enforcing regulations based on laws passed by Congress.
Median Mileage
The middle value in a sorted list of recorded mileages, typically used as a measure of central tendency to indicate the typical mileage.
- Understand and calculate basic statistical measures such as mean, median, mode, and range.
Verified Answer
When the data is ordered, the middle two values are 19 and 20.
(14, 15, 16, 17, 18, 18, 19, 19, 20, 20, 22, 23, 23, 24, 25, 26, 28, 30, 31, 31)
The average of 19 and 20 is 19.5, so the median mileage for these 20 cars is 19.5 miles per gallon. Therefore, the answer is C.
Learning Objectives
- Understand and calculate basic statistical measures such as mean, median, mode, and range.
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