Using the table, which course has the lowest average enrollment across the three years?
Using the table, which course has the lowest average enrollment across the three years?
Show Hint
- Course A
- Course B
- Course C
- Course D
\bigskip
The Correct Option is D
Solution and Explanation
- Step 1: Calculate total for Course A. Sum: $50 + 55 + 60 = 165$. Average: $165 \div 3 = 55$.
- Step 2: Calculate total for Course B. Sum: $60 + 65 + 70 = 195$. Average: $195 \div 3 = 65$.
- Step 3: Calculate total for Course C. Sum: $40 + 45 + 50 = 135$. Average: $135 \div 3 = 45$.
- Step 4: Calculate total for Course D. Sum: $30 + 35 + 40 = 105$. Average: $105 \div 3 = 35$.
- Step 5: Compare averages. Course D: 35, Course C: 45, Course A: 55, Course B: 65. Course D has the lowest average.
- Step 6: Final conclusion. Option (4) Course D is the correct answer.
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