Question

The following table shows data on average per capita wine consumption and heart disease rate in a random sample of 10 countries. The x-value represents the yearly wine consumption (in Liters). The y-value represents the number of deaths from heart diseases.

Country	Wine Consumption	Number of Deaths
1	1.4	201
2	4.6	199
3	4.1	194
4	0.7	220
5	0.3	291
6	5	169
7	3.3	121
8	1	292
9	1.8	261
10	4.1	133

For computation purposes,
?¯x¯ = 2.63 , ?¯y¯ = 208.1 , ∑?∑x= 26.3 , ∑?∑y = 2081 , ∑??∑xy = 4784.9 , ∑?2∑x2 = 97.45 , ∑?2∑y2 = 464995 ,
Using wine consumption as the explanatory variable ?x and compute the correlation as well as the regression line.

The correlation coefficient is ?=r=  . (Round to 4 decimal places.)

The equation of the least squares line is ?̂ =y^=  +  x. (Round to 4 decimal places.)

Answer 1