MATH SOLVE

4 months ago

Q:
# Period 1 has 15 students in it and a test average of 86%. Period 2 has 21 students in it and an average of 88%. Period 3 has 12 students in it and an average of 95%. Use weighted means to find the overall average of the classes

Accepted Solution

A:

Add all of the percents up and then divide by 3. You get 89.6%Β