THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
A sample of 8 households was asked about their monthly income (x) and the number of hours they spend connected to the internet each month (y) .The data yield the following statistics: 
, 
, 
, 
, 
-Determine the sample correlation coefficient between x and y.
Definitions:
Caffeine Consumption
the intake of caffeine, a stimulant drug found in various beverages and foods, which can affect the central nervous system.
Exam Performance
A measurement of how well a person performs on academic tests or examinations.
Deductive Reasoning
A logical process in which a conclusion is based on the concordance of multiple premises that are generally assumed to be true.
Response Variable
A variable that measures the effect of a treatment or experimental condition in a study or experiment.
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