So I was wondering how to calculate an average value with probabilities.
This question is regarding grades.
So I got an 18/30 in the first part of my exam that counted as 30% of my final grade. I then got a 26/30 which counted as 70% of my final grade.
How can I calculate my average grade?
Thanks!
What you are looking for is called an expected value. It is simply a mean weighted by the probabilities.