Questions: QUESTION 5 Choosing a school for your child to can have a critical impact on that child's future. The frequency polygons below reflect the Regents exam scores of 50 students who attended the Macy School (dashed line) and 50 students who attended the Coffin School (solid line) in Brooklyn. [The Regents exams are scored on a scale of 0-100 with 100 being the best possible score.] Based on the patterns you see in these two frequency polygons: Estimate the mean score at the Coffin School

QUESTION 5
Choosing a school for your child to can have a critical impact on that child's future. The frequency polygons below reflect the Regents exam scores of 50 students who attended the Macy School (dashed line) and 50 students who attended the Coffin School (solid line) in Brooklyn. [The Regents exams are scored on a scale of 0-100 with 100 being the best possible score.] Based on the patterns you see in these two frequency polygons:
Estimate the mean score at the Coffin School

Transcript text: QUESTION 5 Choosing a school for your child to can have a critical impact on that child's future. The frequency polygons below reflect the Regents exam scores of 50 students who attended the Macy School (dashed line) and 50 students who attended the Coffin School (solid line) in Brooklyn. [The Regents exams are scored on a scale of 0-100 with 100 being the best possible score.] Based on the patterns you see in these two frequency polygons: Estimate the mean score at the Coffin School

Solution

Solution Steps

Step 1: Identify the peaks for Coffin School

The solid line representing Coffin School has a peak at a score of 70, with approximately 25 students.

Step 2: Identify other significant data points for Coffin School

The Coffin School also has a smaller peak at a score of 75, with approximately 18 students. The remaining students are scattered at scores of 50, 60, 80, and approximately 90.

Step 3: Estimate the mean score

Given the higher concentration of scores between 70 and 75, the mean score for Coffin School can be estimated to be approximately 72.