solve the problem elaine gets quiz grades of 71 75 and 64 sh

solve the problem. elaine gets quiz grades of 71, 75, and 64. she gets a 60 on her finak exam. find the weighted mean if the quizzes each count for 20%

Solve the problem. Elaine gets quiz grades of 71, 75, and 64. She gets a 60 on her final exam. Find the weighted mean if the quizzes each count for 20% and the final exam counts for 40% of the final grade. Round to one decimal place 66.0 68.2 675 65.0

Solution

Weighted average is:

71*0.20+75*0.20+64*0.20+60*0.40=14.2+15+12.8+24=66

Hence first option is correct.