Asked by Jacqueline

A standard math test was given to 6000 students. The scores were normally distributed with a mean of 420 and a standard deviation of 40. If george scored 340, how many students scored more than George? This is hrd because I tried using calculator but that's not the help i need. I need to know how to solve it??
Answered by Jacqueline
hard*
Answered by Steve
you can play around with Z table stuff here:

http://davidmlane.com/hyperstat/z_table.html
Answered by Jacqueline
I cant use that table when Im taking a test or exam I would need to know the steps since its a online class?
Answered by Steve
without a Z table there is no way to do this stuff. Not unless you can calculate the normal distribution stuff by hand.

There may be a chance that they will provide a few Z scores at test time, and if so, then you can interpolate.

Otherwise, check your class materials and there should be some way to figure the stuff by hand.
Answered by PsyDAG
Are you allowed to use the table in your statistics text labeled something like "areas under normal distribution"?
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