Consider the information below relating to the monthly rates of return for two companies X and Y over a period of 4 months:   Y   2                                                                                                         xRate of return                 yRate of Return   Date  Month 1  -4.76  -4.75  Month 2  5.34  7.65  Month 3  12.09  6.98  Month 4  -2.98  9.65     Calculate the covariance per month between the two companies. Show all your working.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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Chapter10: Statistics
Section10.1: Measures Of Center
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Consider the information below relating to the monthly rates of return for two companies X and Y over a period of 4 months:  
Y  
2  
                                                                                                      xRate of return                 yRate of Return   Date  Month 1  -4.76  -4.75  Month 2  5.34  7.65  Month 3  12.09  6.98  Month 4  -2.98  9.65    
Calculate the covariance per month between the two companies. Show all your working.  

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