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Mathematics 13 Online
OpenStudy (anonymous):

The average on an exam is 72 with a standard deviation of 6. A student scores a 78. How many standard deviations is he above or below the average. PLEASE HELP!

OpenStudy (anonymous):

1 standand deviation about. 78-6/72=1

OpenStudy (anonymous):

above sorry

OpenStudy (anonymous):

Thank you so much!!!!!!!!!!!!!!!!!!!!! Yes, I had to be that outrageous. Lol. So you just subtract the standard deviation from the raw number and divide it by whatever the average is?

OpenStudy (anonymous):

Sorry its actually 78-72/6

OpenStudy (anonymous):

Its the raw score- mean/standard deviation. SAme answer, 1

OpenStudy (anonymous):

Okay, I think I get it now. Much appreciated! Have a great night!

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