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A sample has SS = 20 and s2 = 4. There are _____ scores in the sample.

wrong answer : 5 
 
how do i solve this?

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Meena S. | Patient & knowledgeable Mathematics & Statistics (SPSS) TutorPatient & knowledgeable Mathematics & St...
4.5 4.5 (56 lesson ratings) (56)
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Hi Rose,
 
S2  =4
 
S2  = SS/n-1
 
4 = 20/n-1
 
n-1 = 20/4
 
n-1= 5
 
n=6
 
 
 
 
 
Meena from Strongsville,OH 

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