The student's weighted score is 83 * 0.4 + 95 * 0.1 + 77 * 0.25 + 86 * 0.25 = 33.2 + 9.5 + 19.25 + 21.5 = 83.45
Therefore, the student's weighted mean is 83.45.
Some teachers use a weighted mean to calculate grades. Each score is assigned a weight based on its importance. To find a weighted mean, multiply each score by its weight and add the results. For example, a student's final chemistry grade is based on four sources: 40% from lab reports, 10% from quizzes, 25% from the midterm exam, and 25% from the final exam. What is the student's weighted mean given the scores shown in the table? Lab Reports 83 Quizzes 95 Midterm Exam 77 Final Exam 86
the students weighted score is __ simplify your answer type an integer or a decimal
1 answer