We can get a more accurate measure of true test error by evaluating the model fit on this held out set of data. Using the same linear regression model from part 4 (fit to all of the training data), calculate the "true" test error of your predictions based on the newly collected measurements in algaeTest. txt. Is this roughly what you expected based on the CV estimated test error from part 4?

i think that you should ask google for the answer to that problem because if we don't know it google does

v = 1/3 a^2h

step-by-step explanation:

the volume is 1/3 a^2h.

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

a

step-by-step explanation: