Longevity and Salary a Sample of Eight Observations of Variables

question 222

Essay

Longevity and Salary A sample of eight observations of variables x (years of experience)and y (salary in $1,000s)is shown below: {Longevity and Salary Narrative}
a. Calculate and interpret the covariance between x and y .
b. Give a possible reason that the covariance is negative.

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