Civil Service Exam Reviewer · Averages · medium

A student's grades (with units) are: 1.5 (3 units), 1.25 (5 units), 1.5 (3 units), 1 (3 units). What is the weighted average (GWA)?

  1. 1.3
  2. 1.31
  3. 18.25
  4. 1.55

Answer

A. 1.3

Solution

GWA = Σ(grade × units) ÷ Σunits = 18.25 ÷ 14 = 1.3.

More Averages questions

  1. Oscar's scores in the first 5 exams are 82, 83, 86, 91, 77. What score is needed in the next exam to have an average of 85?
  2. What is the median of 55, 81, 32, 48, 28, 99?
  3. The average of a set of numbers is 48. If 5 is added to each number, what is the new average?
  4. What is the average of the first 27 positive even numbers?
  5. Section A has 39 students with an average of 70; Section B has 26 students with an average of 91. What is the combined average?
  6. The average of 4 numbers is 51. If 65 is added to the set, what is the new average?
  7. A student's grades (with units) are: 2 (3 units), 1.75 (2 units), 1.5 (3 units), 2.25 (3 units). What is the weighted average (GWA)?
  8. Ramon's scores in the first 3 exams are 90, 78, 89. What score is needed in the next exam to have an average of 87?
  9. What is the median of 64, 35, 17, 84, 12, 50?
  10. The average of a set of numbers is 36. If each number is multiplied by 9, what is the new average?

All Averages questions