Does playing in organized sports improve childrens reading p

Does playing in organized sports improve children\'s reading performance? In a study, researchers measured the amount of time in organized sports for many children, along with their scores on the state\'s reading proficiency exam. The explanatory variable in this study is A)The type of organized sport the child plays B)The average state score on the reading proficiency exam C)The amount of time spent in organized sports D)The child

Solution

B)The average state score on the reading proficiency exam