Correlation  Eunice Consultancy took a random sample of the monthly office rents per square meter and the percentage of vacancy office space in 15 different cities. The results are shown in the table below.   Vacancy Rate x Monthly Rent y 10 12 11 8 6 10 9 9 12 20 21 15 8 9 12 4,000 7,500 5,300 6,200 8,000 5,000 9,000 3,400 4,400 5,100 8,000 9,000 9,900 8,800 9,000   a. Calculate the coefficient of correlation using the Pearsons’ Product-Moment Coefficient of Correlation and the Spearman’s Rank-Order Coefficient of Correlation. Give the qualitative interpretations. b. Construct a scatter diagram

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