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Question
Use the image to answer the question.

A pie chart shows the following distribution: A equals 8; B equals 12; C equals 5; D equals 3; F equals 2. Each segment of the pie chart shows a different pattern.

What percentage of students scored a B or higher on the exam? Round the answer to the nearest tenth, if necessary.

(1 point)
Responses

40%
40%

20%
20%

26.7%
26.7%

66.7%

Answer 1

To calculate the percentage of students who scored a B or higher, we first need to determine how many students achieved grades B, A, and any other higher grades.

From the distribution provided:
- A = 8
- B = 12
- C = 5
- D = 3
- F = 2

Now, we add up the number of students who scored a B or higher:
- A (8) + B (12) = 20 students

Next, let's find the total number of students:
- Total = A + B + C + D + F = 8 + 12 + 5 + 3 + 2 = 30 students

Now we calculate the percentage of students who scored a B or higher:
\[
\text{Percentage} = \left(\frac{\text{Number of students who scored B or higher}}{\text{Total number of students}}\right) \times 100
\]
\[
\text{Percentage} = \left(\frac{20}{30}\right) \times 100 = \frac{20}{30} \times 100 = \frac{2}{3} \times 100 \approx 66.7\%
\]

Therefore, the percentage of students who scored a B or higher on the exam is **66.7%**.