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.

-A manufacturing company is interested in predicting the number of defects (y) that will be produced each hour on the assembly line (x) . Using sample data they estimate the equation as defects = 5.67 + 0.048 (hours) . Which of the following statements is true?

A) The correlation between x and y is positive.
B) 4.8% of the variability in y is explained by x.
C) 23.08% of the variability in y is explained by x.
D) An increase in x of one-unit will result in an average increase of 5.67 in y.
E) The relationship between x and y could be either positive or negative.