Subtract. Write your answer in simplest form. 5 1/2 - 1 2/7

but I choose 3 4/14
is that correct

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?

Indicate the formula for the following conditions: p^c(n,r)=

Which additional information, if true, would to prove that δlmp ≅ δnmp by hl? check all that apply.