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Elaine is trying to determine her overall grade average in a course. Her grades are listed below. The homework is worth half the grade, exams and quizzes are worth 14 , and projects are worth 14 . What is her current grade in the course? Round your answer to the nearest tenth. Homework 1 76 Homework 2 84 Homework 3 100 Homework 4 89 Quiz 1 77 Quiz 2 92 Exam 1 83 Project 1 90

Sagot :

elizabethcrocker

this isnt written the correct way in order for someone to solve it

Using the weighed mean, it is found that her current grade in the course is of 87.125.

What is the weighed mean?

The weighed mean is given by the sum of all elements in a data-set multiplied by it's weight, divided by the sum of the weights.

In this problem, her grades are as follows:

  • Mean of (76 + 84 + 100 + 89)/4 = 87.25 in the homeworks, worth 0.5.
  • Mean of (77 + 92 + 83)/3 = 84 in the exams and quizzes, worth 0.25.
  • 90 on the project, worth 0.25.

Hence her grade is given by:

G = 0.5 x 87.25 + 0.25 x 84 + 0.25 x 90 = 87.125.

More can be learned about weighed mean at https://brainly.com/question/24398353

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