based on the chart above, we can see the relationship between selling and the price of oil. Cherish the first graph Panel, we will have a trend line and have the following formula: y = ax + b, this is the closest line with all points on the graph. This chart helps us to understand the relationship between the two variables (the oil price and sales) by bringing out the similarities between the two variables. The correlation is negative.= 32.96% is close to 0 so the correlation between two variables is weak, the forecasts may not correctly and the error occurred.
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