Q:

A​ student's course grade is based on one midterm that counts as 10​% of his final​ grade, one class project that counts as 25​% of his final​ grade, a set of homework assignments that counts as 50​% of his final​ grade, and a final exam that counts as 15​% of his final grade. His midterm score is 74​, his project score is 93​, his homework score is 83​, and his final exam score is 77. What is his overall final​ score? What letter grade did he earn​ (A, B,​ C, D, or​ F)? Assume that a mean of 90 or above is an​ A, a mean of at least 80 but less than 90 is a​ B, and so on.

Accepted Solution

A:
Answer:Overall Final Score = 83.7Letter Grade = BStep-by-step explanation:To calculate weighted marks (grade), the rule is to multiply each weight  (in decimal) with respective marks and add them together. Let's do this:Overall final score = (0.10*74) + (0.25*93) + (0.50*83) + (0.15*77) = 83.7From the information given, we know that score between 80 and 90 is a "B".