Question 12 (5 points)

Data from 10 individuals in renal failure with high blood pressure are shown in the following table. The variable sodium represents salt consumption (in milligrams) and the variable BP represents systolic blood pressure (in mmHG).

Sodium (mg)	7.0	7.2	7.1	7.5	7.2	7.2	7.5	7.3	6.7	6.6
BP (mmHG)	156	169	164	177	192	160	197	191	170	150

a. Create a scatterplot of sodium intake and systolic blood pressure; describe the observed relationship (Note: use the correlation coefficient as a guide for the direction and strength of the relationship).(1 point)

b. Determine the least squares regression line for the data. (2 points