Iwill mark + !

question:
read the description. identify the variable in the situation and determine whether it describes a positive or negative correlation. explain whether the correlation is a result of causation

educational researchers are investigating the relationship between the number of musical instruments a student plays and a student’s grade in math. the researchers conducted a survey asking 110 students the number of musical instruments they play and went to the registrar’s office to find the same 110 students’ grades in math. the researchers found that students who play a greater number of musical instruments tend to have a greater average grade in math.