Posted by Susan on Friday, January 25, 2008 at 4:30pm.
A student scored 70 percent on a test, and was in the 80th percentile. Explain these two numbers.

Statistics  Ms. Sue, Friday, January 25, 2008 at 5:06pm
The 70% score shows that the student answered 70% of the questions correctly. If there were 100 questions, he answered 70 of the questions correctly.
At the 80th percentile, 80% of the other students scored below 70% and 20% scored above 70%.