Licensed drivers. The table contains the state population and the number of licensed drivers in the state (both in millions) for the states with population under 1 million in 2010. The regression model for this data is
y = 0.75x
where x is the state population and y is the number of licensed drivers in the state.
licensed Drivers in 2010
State | Population | Licensed Drivers |
Alaska | 0.71 | 0.52 |
Delaware | 0.90 | 0.70 |
Montana | 0.99 | 0.74 |
North Dakota | 0.67 | 0.48 |
South Dakota | 0.81 | 0.60 |
Vermont | 0.63 | 0.51 |
Wyoming | 0.56 | 0.42 |
Source: Bureau of Transportation Statistics
(A) Draw a scatter plot of the data and a graph of the model on the same axes.
(B) If the population of Idaho in 2010 was about 1.6 million, use the model to estimate the number of licensed drivers in Idaho in 2010 to the nearest thousand.
(C) If the number of licensed drivers in Rhode Island in 2006 was about 0.75 million, use the model to estimate the population of Rhode Island in 2010 to the nearest thousand.
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