What is the sum of 16 quotient of 3

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?

Which of the following is true for the relation f(x)=2x^2+1

Write the slope-intercept form of the line that passes through the point (1, 0) and is parallel to x - y = 7. t