The Graph Below Is a Plot of the Fuel Efficiency

question 28

Multiple Choice

The graph below is a plot of the fuel efficiency (in miles per gallon,or mpg) of various cars versus the weight of these cars (in thousands of pounds) . The points denoted by the plotting symbol × correspond to pick-up trucks and SUVs.The points denoted by the plotting symbol  correspond to automobiles (sedans and station wagons) .What can we conclude from this plot?

• A)There is little difference between trucks and automobiles.
• B)Trucks tend to be higher in weight than automobiles.
• C)Trucks tend to get poorer gas mileage than automobiles.
• D)The plot is invalid.A scatterplot is used to represent quantitative variables,and the vehicle type is a qualitative variable.
• E)Both B and C

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Definitions:

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A biological concept referring to the behaviors and mechanisms organisms use to produce offspring and ensure their survival.

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Freud's theory that describes how personality develops through five stages (oral, anal, phallic, latency, genital) during childhood.

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