It takes Caroline 1/5 of an hour to walk a mile. Four of Caroline's friends time themselves on their own walks of different lengths. *David: walked 1/2 of a mile in 2/5 of an hour

*Jeanette: walked 1/2 of a mile in 1/10 of an hour

*Kay: walked 1/5 of a mile in 12 of an hour

*Mark: walked 1/3 of a mile in 3/5 of an hour

Which friend is walking at the same rate as Caroline?

A. David

B. Jeanette

C. Kay

D. Mark

How to write 3 tenths and 5 tenths as a decimal

Question 5 spring semester final exam math evaluate

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?