Question 489916: Table 10 contains state (both in millions) for the states with population over 1 million in 2006. The regression model for this data is y = 0.72x + 0.03 where x is the state population and y is the number of licensed drivers in the state.
B) If the population of Idaho in 2006 was about 1.5 million, use the model to estimate the number of licensed drivers in Idaho in 2006 to the nearest thousand.
C) If the number of licensed drivers in Rhode Island in 2006 was about 0.74 million, use the model to estimate the population of Rhode Island in 2006 to the nearest thousand.
Please help me....
Answer by deborabr(181)   (Show Source):
You can put this solution on YOUR website!B)substitute x by 1,5
y=0,72*1,5+0,03
y=1,08+0,03
y=1,11
1,11 millions is the number of licensed drivers in Idaho in 2006
C)substitute y by 0,74
0,74=0,72x+0,03
0,74-0,03=0,72x
0,71=0,72x
0,71/0,72=x
0,98=x
0,98 millions is the population of Rhode Island in 2006
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