There are 341 calories in 1 Roast Beef Sandwich. Calorie breakdown: 36% fat, 31% carbs, 32% protein.
Definition of Correlation: Correlation is a statistical technique that is used to measure and describe the STRENGTH and DIRECTION of the relationship between two variables. Correlation requires two scores from the SAME individuals.
The correlation coefficient is a measurement of association between two random variables. While its numerical calculation is straightforward, it is not readily applicable to non-parametric statistics. For example, in the data set survey, the exercise level (Exer) and smoking habit (Smoke) are qualitative attributes.