Weighted Means. We often deal with weighted means, in which different data values carry different weights in the calculation of the mean. For example, if the final exam counts for 50% of your final grade and 2 midterms each count for 25% then you must assign weights of 50% and 25% to the final and midterms, respectively, before computing the mean score for the term. Apply the idea of weighted means in the following exercises. 43. GPA. A student has completed the 15 credits in the table below during one semester. Grades are weighted as follows: A = 4.0, A— = 3.7, B+ = 3.4, B = 3.0, B— = 2.7, C+ = 2.4, C = 2.0. a. Find the student’s GPA for the semester. b. What grade would the student need in French to raise her GPA over 3.5? Course Credits Grade Statistics 4 A Eastern Religions 3 B+ French 4 C+ Geology 3 B— Geology Lab 1 A—
Weighted Means. We often deal with weighted means, in which different data values carry different weights in the calculation of the mean. For example, if the final exam counts for 50% of your final grade and 2 midterms each count for 25% then you must assign weights of 50% and 25% to the final and midterms, respectively, before computing the mean score for the term. Apply the idea of weighted means in the following exercises. 43. GPA. A student has completed the 15 credits in the table below during one semester. Grades are weighted as follows: A = 4.0, A— = 3.7, B+ = 3.4, B = 3.0, B— = 2.7, C+ = 2.4, C = 2.0. a. Find the student’s GPA for the semester. b. What grade would the student need in French to raise her GPA over 3.5? Course Credits Grade Statistics 4 A Eastern Religions 3 B+ French 4 C+ Geology 3 B— Geology Lab 1 A—
Weighted Means. We often deal with weighted means, in which different data values carry different weights in the calculation of the mean. For example, if the final exam counts for 50% of your final grade and 2 midterms each count for 25% then you must assign weights of 50% and 25% to the final and midterms, respectively, before computing the mean score for the term. Apply the idea of weighted means in the following exercises.
43. GPA. A student has completed the 15 credits in the table below during one semester. Grades are weighted as follows: A = 4.0, A— = 3.7, B+ = 3.4, B = 3.0,
B— = 2.7, C+ = 2.4, C = 2.0.
a. Find the student’s GPA for the semester.
b. What grade would the student need in French to raise her GPA over 3.5?
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