The 550 students answered an additional question with the following results based on their rating of their instructor:
$$\begin{array} { | c | c | c | }
\hline & \text { Very or Somewhat Effective } & \text { Very or Somewhat Ineffective } \
\hline \text { Final Grade } & & \
\hline \text { A } & 190 & 85 \
\hline \text { B } & 75 & 120 \
\hline \text { C } & 20 & 17 \
\hline \text { D } & 9 & 18 \
\hline \text { F } & 1 & 15 \
\hline
\end{array}$$
-What percentage of books were in the top two categories?
A)22.99
B)20.44
C)4.50
D)43.43
E)4343

Question

The 550 students answered an additional question with the following results based on their rating of their instructor:
$$\begin{array} { | c | c | c | } 
\hline & \text { Very or Somewhat Effective } & \text { Very or Somewhat Ineffective } \
\hline \text { Final Grade } & & \
\hline \text { A } & 190 & 85 \
\hline \text { B } & 75 & 120 \
\hline \text { C } & 20 & 17 \
\hline \text { D } & 9 & 18 \
\hline \text { F } & 1 & 15 \
\hline
\end{array}$$
-What percentage of books were in the top two categories?
A)22.99
B)20.44
C)4.50
D)43.43
E)4343

Quizplus · Accepted Answer

To find the percentage of books in the top two categories (A and B), we add the numbers for both Very or Somewhat Effective and Very or Somewhat Ineffective for grades A and B: 190 + 85 + 75 + 120 = 470. Then, we divide this by the total number of students (550) and multiply by 100 to get the percentage: (470 / 550) * 100 = 85.45%. However, the question seems to be incorrectly asking for the percentage of books instead of students, and the provided options do not match the calculated percentage. The correct interpretation based on the options given and the context of the question is not about books but about the percentage of students in the top two categories, which seems to be a mistake in the question. None of the provided options match the calculated percentage, suggesting a possible misunderstanding in the question's phrasing or intent.

The 550 Students Answered an Additional Question with the Following