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Which method describes an experiment? An auto-parts store offers a fuel additive that claims to increase a vehicle's gas mileage. The additive is poured into a vehicle's gasoline tank after the tank is filled. To Method B is an experiment because every car receives the additive. measure the claim, two methods to collect data are proposed. O Method A is an experiment because the additive is used with a new tank of gasoline. Method A: 10 similar police cars owned by a city are O Both methods are experiments because the additive is used in a new tank of gas in both methods. selected. After the cars are filled with a fresh tank of gasoline, researchers randomly select 10 of the cars to receive the additive, while the other 10 do not receive the additive. The gas mileage for each car is recorded in miles per gallon. O Method A is an experiment because random assignment determines which cars receive the additive and which cars do not. Method B: 20 customers at an auto-parts store receive free coupons for the additive and are asked to use it with their next fresh tank of gasoline. The customers then

Which method describes an experiment? An auto-parts store offers a fuel additive that claims to increase a vehicle's gas mileage. The additive is poured into a vehicle's gasoline tank after the tank is filled. To Method B is an experiment because every car receives the additive. measure the claim, two methods to collect data are proposed. O Method A is an experiment because the additive is used with a new tank of gasoline. Method A: 10 similar police cars owned by a city are O Both methods are experiments because the additive is used in a new tank of gas in both methods. selected. After the cars are filled with a fresh tank of gasoline, researchers randomly select 10 of the cars to receive the additive, while the other 10 do not receive the additive. The gas mileage for each car is recorded in miles per gallon. O Method A is an experiment because random assignment determines which cars receive the additive and which cars do not. Method B: 20 customers at an auto-parts store receive free coupons for the additive and are asked to use it with their next fresh tank of gasoline. The customers then

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Which method describes an experiment? An auto-parts store offers a fuel additive that claims to increase a vehicle's gas mileage. The additive is poured into a vehicle's gasoline tank after the tank is filled. To O Method B is an experiment because every car measure the claim, two methods to collect data are receives the additive. proposed. O Method A is an experiment because the additive is used with a new tank of gasoline. Method A: 10 similar police cars owned by a city are O Both methods are experiments because the additive is used in a new tank of gas in both methods. selected. After the cars are filled with a fresh tank of gasoline, researchers randomly select 10 of the cars to receive the additive, while the other 10 do not receive the additive. The gas mileage for each car is recorded in miles per gallon. O Method A is an experiment because random assignment determines which cars receive the additive and which cars do not. Method B: 20 customers at an auto-parts store receive free coupons for the additive and are asked to use it with their next fresh tank of gasoline. The customers then report their gas mileage with the fuel additive. US
Transcribed Image Text:Which method describes an experiment? An auto-parts store offers a fuel additive that claims to increase a vehicle's gas mileage. The additive is poured into a vehicle's gasoline tank after the tank is filled. To O Method B is an experiment because every car measure the claim, two methods to collect data are receives the additive. proposed. O Method A is an experiment because the additive is used with a new tank of gasoline. Method A: 10 similar police cars owned by a city are O Both methods are experiments because the additive is used in a new tank of gas in both methods. selected. After the cars are filled with a fresh tank of gasoline, researchers randomly select 10 of the cars to receive the additive, while the other 10 do not receive the additive. The gas mileage for each car is recorded in miles per gallon. O Method A is an experiment because random assignment determines which cars receive the additive and which cars do not. Method B: 20 customers at an auto-parts store receive free coupons for the additive and are asked to use it with their next fresh tank of gasoline. The customers then report their gas mileage with the fuel additive. US
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