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A sample of n = 4 scores has SS = 12. What is the standard deviation for the sample?

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Hi Rose,
Standard Deviation= square root of SS/n-1..... {SS represents the sum of squared differences from the 
                                                                              mean  =∑ (xì- ¯x)2  }
                            = square root of 12/3                        
                            =square root of 4
Meena from Strongsville