Simply that the person performed as well as the rest of the class.
Chat with our AI personalities
it mean the average
That has several variables that nobody knows for sure, if you mean class average, then it's a 70%.
It means to go and pass gas.
When a student takes a test or examination the result they receive, as a number, is often called a score. The average of a collection of scores, say for one class of students, is called a mean score. Mean is just another word for average.
Mark up would mean to add. Mark down would mean to subtract.