Someone measured the length of a pin to be 22 cm. The actual length of the pen is 23 cm . Which of these is closest to the percent error for someone's measurement?

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?

15 points! write the slope-intercept form of the equation of the line through the given point with the given slope. use y-y = m(x-x) to solve. through (2,5) slope= undefined

Which type of graph would allow us to compare the median number of teeth for mammals and reptiles easily