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valkas [14]
2 years ago
8

12. [0/7.18 Points] DETAILS

Mathematics
1 answer:
Firdavs [7]2 years ago
8 0

Using the weighted mean, your final grade is of 80.58.

<h3>What is the weighted mean?</h3>

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

When the weights are given as proportions, as is the case in this problem, the weighed mean is the <u>sum of each value multiplied by it's proportion</u>.

For this problem, the grades are given as follows:

  • 63 with a proportion of 0.17.
  • 60 with a weight of 0.205.
  • 78 with a weight of 0.205.
  • 99 with a weight of 0.42.

Hence the final grade is given by:

0.17 x 63 + 0.205 x 60 + 0.205 x 78 + 0.42 x 99 = 80.58.

More can be learned about the weighted mean at brainly.com/question/24398353

#SPJ1

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