Would I set it up like this?
-1.5 = x-50/5???
On a entrance exam, the mean was 50 and standard deviation was 5. If Ricky's z-score was -1.5, what was his exam score?
I don't have a clue how to start to answer this question...
2 answers
http://davidmlane.com/hyperstat/z_table.html
1 answer