Consider the Following to Answer the Question(s) Below

Multiple Choice

Consider the following to answer the question(s) below:
To determine whether the tip left at the end of a meal is related to the size of the total bill at their restaurant, Chez Michelle, data were gathered for 10 customers. The data and summary statistics are shown below.

-The slope of the estimated regression line that relates the response variable (Tip) to the predictor variable (Total Bill) is

A) 0.213.
B) -0.213.
C) 0.877.
D) 0.937.
E) -0.937.