1. Fine the mean of the data
2. Find the mean absolute deviation

MEAN: 4

MEAN ABSOLUTE DEVIATION: 2

Step-by-step explanation:

mean: 3 + 2 + 2 + 7 + 6 + 3 + 9 + 0 = 32/8 = 4

4 - 3 = 1

4 - 2 = 2

4 - 2 = 2

4 - 7 = 3

4 - 6 = 2

4 - 3 = 1

4 - 9 = 5

Mean Absolute Deviation: 1 + 1 + 2 + 2 + 2 + 3 + 5 = 16/8 = 2

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answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204

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step-by-step explanation: