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Interpretation of Graphs
Chart of sales and advertisement is prepared above and both reflect that in past years sales and advertisement of the firm increases at rapid pace. The interesting fact is that sales and advertisement are increasing at same pace in the relevant duration.
This means that if advertisement increases by 10% then sales also enhance by same percentage. This reflects that there is very high and close relationship between both variables. This is good sign for the business firm. In order to enhance sale of the product firm can commence advertisement of its product.