Which of the following is an example of gameplay in a video game a: the art of a game b: the player interacting with the game world and game mechanics c: the personalities of all the characters d: all of the above

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?

Ineed with math stuff it involves graphs

The track team ran a mile and a quarter during their practice how many kilometers did her team runs?