Jerilyn made 40 treats for her birthday and she gave 4 away to her family she brings the rest of the treats to her school what percent did she give away to her family

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?

Can someone me with this problem i don't understand i need

Drag the tiles to the correct boxes to complete the pairs. label each function. as even , odd, or neither.