An observational study is described. Determine the given element. An educational researcher used school records to determine that, in one school district, 84% of children living in two-parent homes graduated high school while 75% of children living in single-parent homes graduated high school. Determine the parameter of interest.
Select one:
a. High school graduation rate
b. Percent of children in single-parent homes and in two-parent homes
c. Percent of two-parent homes and single-parent homes
d. The number of children
e. The number of school districts