If p(x) = 2x2 – 4x and q(x) = x – 3, what is (pxq) (x)

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

Describe how you can act financially responsible.