The table shows the sales of a health and beauty supply company, in millions of dollars, for several years. Let x be the number of years since 2010.



Year 2011 2012 2013 2014 2015
Sales 12.2 19.1 29.4 37.3 45.7


a. Write the equation for the best-fit line for the data. Round to the nearest hundredth, if necessary.



y =
x +

Part B
Select the correct choices to complete the sentence.
b. Find and interpret the correlation coefficient.



r ≈ , 1 of 4.
Select Choice



The equation , 2 of 4.
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the data very well. Its , 3 of 4.
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value means that as the years since 2010 increase, sales, in millions of dollars, , 4 of 4.
Select Choice
.

The table shows the sales of a health and beauty supply company in millions of dollars for several years Let x be the number of years since 2010 Year 2011 2012 class=


Answer :

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