How does randomization in an experiment combat response bias? . a. all the subjects that are biased one way get assigned to the treatment group. b. when subjects are randomly assigned to treatment and control groups, they will not exhibit response bias. c. response bias cannot be eliminated, but it should cancel out between the treatment and control groups. d. if the experimenter does not know which subjects are in the treatment group, he will not mistakenly cause response bias. e. in a simple random sample chosen from the population, there will be no response bias.

  q

step-by-step explanation:

each line from a vertex to the midpoint of the opposite side is called a median. the point where the medians intersect, point q, is the centroid.

the centroid of δabc is point q.

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