Question

Every year the state department of education gathers statistical information from all schools to award a letter grade showing the school’s academic performance. Each school is given a rating based on the median of the grades. A school principal used a bar graph to send his report. He assigned the horizontal axis to the student’s name and the vertical axis to the grades. Why was this a mistake? Explain what you would have done to send the results in a proper manner and complete.

Answer 1

A school principal used a bar graph to send his report. He assigned the horizontal axis to the student’s name and the vertical axis to the grades. If the x-axis (the horizontal axis) is the students name and the y-axis (the vertical axis) are the grades. There has to be multiple bar-graphs per student. Otherwise the data would be incomplete.

Answer 2

Because there is too much info that the principal put in his bar graph and it would be difficult to read. I would have assigned the grade to the horizontal axis and the number of students who made that grade to the vertical axis, then it would have been easier to read.

Explanation: