What is the correlation coefficient between age and salary?

Natasha1
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Could some one please help me with the following question.

The ages and salaries (in thousands of $) of 10 employees in a firm are given below.

Age - Salary
28 - 17
31 - 22
31 - 28
35 - 20
40 - 26
44 - 30
45 - 32
48 - 18
53 - 33
67 - 42

What is the correlation coefficient between age and salary? (Giving enough detail to understand the proceedings)

Comment on its value (referring maybe back to the data, to note any individuals who figures make a particular contribution to the value of the coefficient)
 
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Cumon Nat, you should know by now that you need to show some work. What is the formula for the correlation coefficent you have been given?

~H
 
There are two things I don't understand about this problem. First, when finding the nth root of a number, there should in theory be n solutions. However, the formula produces n+1 roots. Here is how. The first root is simply ##\left(r\right)^{\left(\frac{1}{n}\right)}##. Then you multiply this first root by n additional expressions given by the formula, as you go through k=0,1,...n-1. So you end up with n+1 roots, which cannot be correct. Let me illustrate what I mean. For this...

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