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Old 07-28-2007   #1
trust4trust06901
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Default In a geometry class?

In a geometry class, Jeff scored a 6 on a quiz for which the class mean and standard deviation were 4.2 and 3.1, respectively. Patty scored a 7 on another quiz for which the class mean and standard deviation were 6.3 and 1.2, respectively. Relatively speaking, which student did better?
 
Old 07-28-2007   #2
Helmut
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(6 - 4.2)/3.1 = 0.5806452(7 - 6.3)/1.2 = 0.5833333Relative to the respective means & s.d.'s Patty did better.
 
Old 07-28-2007   #3
Flac
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Jeffdid I think... I can't explain the reasoning, maybe I'm right =)
 
 

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