Number 4 under problem 1.
okmarks Window Help ecampus,wtc.edu Math 1314 Lab- Weighted Averaging This lab contains the concepts needed to calculate an average in a course using weighted averages such as this class. Assume in a science course, final averages are based on the following percentages. 45% Chapter tests Quizzes 15% Online Homework 10% Labs Final Exam There are two ways to calculate the average. One way is to average the individual types of grades (Chapter tests, Quizzes, Online Homework, and Labs) and then use the formula (avg ch tests) 0.45 +(avg quizzes) 0.15 +(avg hw) 0.10 (avg labs) 0.05 (final) 0.25 weighted average Example: Given the following grades, calculate the average ofeach type by adding the items under each type and divide by the number ofitems. Chapter Tests Quizzes Hw Labs Final 100 95 100 100 80 100 100 75 75 310 475 455 275 Divide by 4 by 7 by 7 by 3 77,5 67.9 91.7 Put the average grade for each type into the formula given. (avg cha tests) 0.45 (avg quizzes) 0.15 (avg hw) 0.10 (avg labs) 0.05 (final) 0.25 weighted average G7.5) 0.45 (67.9) o.15 (650 0.10 (91 0.05 (95) 0.25 -7990
Show transcribed image text okmarks Window Help ecampus,wtc.edu Math 1314 Lab- Weighted Averaging This lab contains the concepts needed to calculate an average in a course using weighted averages such as this class. Assume in a science course, final averages are based on the following percentages. 45% Chapter tests Quizzes 15% Online Homework 10% Labs Final Exam There are two ways to calculate the average. One way is to average the individual types of grades (Chapter tests, Quizzes, Online Homework, and Labs) and then use the formula (avg ch tests) 0.45 +(avg quizzes) 0.15 +(avg hw) 0.10 (avg labs) 0.05 (final) 0.25 weighted average Example: Given the following grades, calculate the average ofeach type by adding the items under each type and divide by the number ofitems. Chapter Tests Quizzes Hw Labs Final 100 95 100 100 80 100 100 75 75 310 475 455 275 Divide by 4 by 7 by 7 by 3 77,5 67.9 91.7 Put the average grade for each type into the formula given. (avg cha tests) 0.45 (avg quizzes) 0.15 (avg hw) 0.10 (avg labs) 0.05 (final) 0.25 weighted average G7.5) 0.45 (67.9) o.15 (650 0.10 (91 0.05 (95) 0.25 -7990 
