Fuel efficiency, measured in miles per gallon, is a How would the value of the correlation coefficient change measure often considered by shoppers looking for a new if the car weights were recorded in kilograms, rather than
car. The scatterplot shows the vehicle weight of 15 car pounds?
models in pounds, plotted against their highway fuel
efficiency.
The value of the correlation coefficient would
increase.
The value of the correlation coefficient would
Fuel Efficiency
decrease.
The value of the correlation coefficient would not
change.
The value of the correlation coefficient could increase
or decrease, depending on the new scatterplot.
45
Fuel Efficiency
(Miles per Gallon)
30
25
20
0
2 2.5 3 3.5 4 4.5 5 5.5 6
Car Weight (Thousands of Round

Consider the following geometry problems in 3-space enter t or f depending on whether the statement is true or false. (you must enter t or f -- true and false will not work.) f equation editorequation editor 1. a plane and a line either intersect or are parallel t equation editorequation editor 2. two planes parallel to a third plane are parallel f equation editorequation editor 3. two lines either intersect or are parallel f equation editorequation editor 4. two planes orthogonal to a third plane are parallel f equation editorequation editor 5. two planes orthogonal to a line are parallel f equation editorequation editor 6. two planes either intersect or are parallel f equation editorequation editor 7. two lines orthogonal to a third line are parallel t equation editorequation editor 8. two lines parallel to a third line are parallel t equation editorequation editor 9. two planes parallel to a line are parallel f equation editorequation editor 10. two lines parallel to a plane are parallel f equation editorequation editor 11. two lines orthogonal to a plane are parallel