Research finds that the more frequently you brush your teeth, the less likely you are to develop cavities that will need to be filled. this relationship between variables depicts a: a) negative correlation. b) positive correlation. c) bimodal set. d) quasi-experimental finding.

a) Negative correlation

Explanation:

Negative correlation is a term which basically explains a relationship between to variables in which increase in one variable causes a decrease in the other variable and vice versa. As in the given scenario, the more frequently the teeths are brushed ( variable is increasing ) the less likely is the chance to develop cavities (variable is decreasing)

Hence a)negative correlation is the right answer.

when in a crucial situation, after calling 911, the correct posture for delivering effective compression is the proper hand placement.

first, place two fingers at the sternum, then put the heel of your other hand next to the fingers and place hand on top of the other. lock your elbows by using your body’s weight and compress the victim’s chest with a depth of 2 inches.

moreover, do 15 compression and 2 breaths, this process must be done four times until there is a pulse or a arrive.