In a simple linear regression model we use the normal quantile plot of the residuals to evaluate if it is reasonable to assume the come from a normal distribution.

sorry i need the points

step-by-step explanation:

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the answer is two. hope this !

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

the formula of a slope:

we have the points (-2, 7) and (2, 3). substitute: