About data:
The data will be found in heart.csv. The first row is the name of the observed variables. There are 10 variables:

●	sbp: Systolic blood pressure
●	tobacco: Cumulative tobacco consumption, in kg
●	ldl: Low-density lipoprotein cholesterol
●	adiposity: Adipose tissue concentration
●	famhist: Family history of heart disease (1=Present, 0=Absent)
●	typea: Score on test designed to measure type-A behavior
●	obesity: Obesity
●	alcohol: Current consumption of alcohol
●	age: Age of subject
●	chd: Coronary heart disease at baseline; 1=Yes 0=No. 
chd=1 means alive and chd=0 means dead.