Using the equation of the trend line for the scatter plot, the number of sales the store makes in December than in November will be: 42.
Equation of Trend Line
The equation of the trend line represents the line on scatter plot that can be used to predict number of sales the store makes in any month.
Equation of the trend line is: y = 42x + 50.
December (x) = 12
Sales in December (y) would be:
y = 42(12) + 50 = 554
November (x) = 11
Sales in November (y) would be:
y = 42(11) + 50 = 512
Difference between December and November sales = 554 - 512 = 42
Therefore, using the equation of the trend line for the scatter plot, the number of sales the store makes in December than in November will be: 42.
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