Below is a classification of education level of public health professionals and whether the Individual is a member of the American Public Health Association. Member Non-Member Total Undergraduate 135 165 Masters 90 10 100 20 10 Postdoc 15 5 20 Total 260 190 450 If you were to carry out a chi-square test of Independence on this data, what would be the expected value for the cell defined by the combination of being a PhD student and a non-member? OA. 10/450 O B. (10*30)/450 OC. (10*190)/450 OD. (30*190)/450 QUESTION 18 1 points Save Answer Below is a classification of education level of public health professionals and whether the Individual is a member of the American Public Health Association. Member Non-Member Total Undergraduate 13! 165 Masters 90 10 100 Pho 20 10 30 Postdoc 15 5 20 otal 260 190 450 If you were to carry out a chi-square test of Independence on this data, what would be the degrees of freedom for the underlying reference distribution? OA. 2 OB. 3 OC. 6