A Program Evaluator for a Large School District Randomly Selects

A program evaluator for a large school district randomly selects one classroom at each grade level in each elementary school and administers an intelligence test to the children in those classrooms.She knows from previous research that performance is strongly related to a student's intelligence.If the program evaluator wants to predict how well a new student will fare in this school district,she should

A) calculate the mean and standard deviation of the new student's school performance.
B) calculate the mean and standard deviation for the district's intelligence scores.
C) calculate the range and the median for both intelligence and school performance.
D) conduct further research into the relationship between intelligence level and elementary school performance within her own district.